docs: docs update (#911)

Thank you for opening a Pull Request! Before submitting your PR, there are a few things you can do to make sure it goes smoothly:
- [ ] Make sure to open an issue as a [bug/issue](https://github.com/googleapis/google-api-python-client/issues/new/choose) before writing your code!  That way we can discuss the change, evaluate designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
- [ ] Appropriate docs were updated (if necessary)

Fixes #<issue_number_goes_here> 🦕
diff --git a/docs/dyn/gmail_v1.users.messages.html b/docs/dyn/gmail_v1.users.messages.html
index abb2d21..f21c069 100644
--- a/docs/dyn/gmail_v1.users.messages.html
+++ b/docs/dyn/gmail_v1.users.messages.html
@@ -80,644 +80,386 @@
 <p class="firstline">Returns the attachments Resource.</p>
 
 <p class="toc_element">
-  <code><a href="#batchDelete">batchDelete(userId, body=None, x__xgafv=None)</a></code></p>
-<p class="firstline">Deletes many messages by message ID.  Provides no guarantees that messages</p>
+  <code><a href="#batchDelete">batchDelete(userId, body=None)</a></code></p>
+<p class="firstline">Deletes many messages by message ID. Provides no guarantees that messages were not already deleted or even existed at all.</p>
 <p class="toc_element">
-  <code><a href="#batchModify">batchModify(userId, body=None, x__xgafv=None)</a></code></p>
+  <code><a href="#batchModify">batchModify(userId, body=None)</a></code></p>
 <p class="firstline">Modifies the labels on the specified messages.</p>
 <p class="toc_element">
-  <code><a href="#delete">delete(userId, id, x__xgafv=None)</a></code></p>
-<p class="firstline">Immediately and permanently deletes the specified message. This operation</p>
+  <code><a href="#delete">delete(userId, id)</a></code></p>
+<p class="firstline">Immediately and permanently deletes the specified message. This operation cannot be undone. Prefer messages.trash instead.</p>
 <p class="toc_element">
-  <code><a href="#get">get(userId, id, format=None, x__xgafv=None, metadataHeaders=None)</a></code></p>
+  <code><a href="#get">get(userId, id, format=None, metadataHeaders=None)</a></code></p>
 <p class="firstline">Gets the specified message.</p>
 <p class="toc_element">
-  <code><a href="#import_">import_(userId, body=None, internalDateSource=None, neverMarkSpam=None, x__xgafv=None, media_body=None, deleted=None, media_mime_type=None, processForCalendar=None)</a></code></p>
-<p class="firstline">Imports a message into only this user's mailbox, with standard</p>
+  <code><a href="#import_">import_(userId, body=None, deleted=None, internalDateSource=None, neverMarkSpam=None, processForCalendar=None, media_body=None, media_mime_type=None)</a></code></p>
+<p class="firstline">Imports a message into only this user's mailbox, with standard email delivery scanning and classification similar to receiving via SMTP. Does not send a message.</p>
 <p class="toc_element">
-  <code><a href="#insert">insert(userId, body=None, internalDateSource=None, media_body=None, deleted=None, x__xgafv=None, media_mime_type=None)</a></code></p>
-<p class="firstline">Directly inserts a message into only this user's mailbox similar to</p>
+  <code><a href="#insert">insert(userId, body=None, deleted=None, internalDateSource=None, media_body=None, media_mime_type=None)</a></code></p>
+<p class="firstline">Directly inserts a message into only this user's mailbox similar to IMAP APPEND, bypassing most scanning and classification. Does not send a message.</p>
 <p class="toc_element">
-  <code><a href="#list">list(userId, labelIds=None, pageToken=None, includeSpamTrash=None, maxResults=None, q=None, x__xgafv=None)</a></code></p>
+  <code><a href="#list">list(userId, includeSpamTrash=None, labelIds=None, maxResults=None, pageToken=None, q=None)</a></code></p>
 <p class="firstline">Lists the messages in the user's mailbox.</p>
 <p class="toc_element">
   <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
 <p class="firstline">Retrieves the next page of results.</p>
 <p class="toc_element">
-  <code><a href="#modify">modify(userId, id, body=None, x__xgafv=None)</a></code></p>
+  <code><a href="#modify">modify(userId, id, body=None)</a></code></p>
 <p class="firstline">Modifies the labels on the specified message.</p>
 <p class="toc_element">
-  <code><a href="#send">send(userId, body=None, media_body=None, media_mime_type=None, x__xgafv=None)</a></code></p>
-<p class="firstline">Sends the specified message to the recipients in the</p>
+  <code><a href="#send">send(userId, body=None, media_body=None, media_mime_type=None)</a></code></p>
+<p class="firstline">Sends the specified message to the recipients in the To, Cc, and Bcc headers.</p>
 <p class="toc_element">
-  <code><a href="#trash">trash(userId, id, x__xgafv=None)</a></code></p>
+  <code><a href="#trash">trash(userId, id)</a></code></p>
 <p class="firstline">Moves the specified message to the trash.</p>
 <p class="toc_element">
-  <code><a href="#untrash">untrash(userId, id, x__xgafv=None)</a></code></p>
+  <code><a href="#untrash">untrash(userId, id)</a></code></p>
 <p class="firstline">Removes the specified message from the trash.</p>
 <h3>Method Details</h3>
 <div class="method">
-    <code class="details" id="batchDelete">batchDelete(userId, body=None, x__xgafv=None)</code>
-  <pre>Deletes many messages by message ID.  Provides no guarantees that messages
-were not already deleted or even existed at all.
+    <code class="details" id="batchDelete">batchDelete(userId, body=None)</code>
+  <pre>Deletes many messages by message ID. Provides no guarantees that messages were not already deleted or even existed at all.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   body: object, The request body.
     The object takes the form of:
 
 {
-    "ids": [ # The IDs of the messages to delete.
-      "A String",
+    &quot;ids&quot;: [ # The IDs of the messages to delete.
+      &quot;A String&quot;,
     ],
   }
 
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
 </pre>
 </div>
 
 <div class="method">
-    <code class="details" id="batchModify">batchModify(userId, body=None, x__xgafv=None)</code>
+    <code class="details" id="batchModify">batchModify(userId, body=None)</code>
   <pre>Modifies the labels on the specified messages.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   body: object, The request body.
     The object takes the form of:
 
 {
-    "removeLabelIds": [ # A list of label IDs to remove from messages.
-      "A String",
+    &quot;addLabelIds&quot;: [ # A list of label IDs to add to messages.
+      &quot;A String&quot;,
     ],
-    "ids": [ # The IDs of the messages to modify. There is a limit of 1000 ids per
-        # request.
-      "A String",
+    &quot;ids&quot;: [ # The IDs of the messages to modify. There is a limit of 1000 ids per request.
+      &quot;A String&quot;,
     ],
-    "addLabelIds": [ # A list of label IDs to add to messages.
-      "A String",
+    &quot;removeLabelIds&quot;: [ # A list of label IDs to remove from messages.
+      &quot;A String&quot;,
     ],
   }
 
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
 </pre>
 </div>
 
 <div class="method">
-    <code class="details" id="delete">delete(userId, id, x__xgafv=None)</code>
-  <pre>Immediately and permanently deletes the specified message. This operation
-cannot be undone.  Prefer &lt;code&gt;messages.trash&lt;/code&gt; instead.
+    <code class="details" id="delete">delete(userId, id)</code>
+  <pre>Immediately and permanently deletes the specified message. This operation cannot be undone. Prefer messages.trash instead.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   id: string, The ID of the message to delete. (required)
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
 </pre>
 </div>
 
 <div class="method">
-    <code class="details" id="get">get(userId, id, format=None, x__xgafv=None, metadataHeaders=None)</code>
+    <code class="details" id="get">get(userId, id, format=None, metadataHeaders=None)</code>
   <pre>Gets the specified message.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   id: string, The ID of the message to retrieve. (required)
   format: string, The format to return the message in.
-  x__xgafv: string, V1 error format.
     Allowed values
-      1 - v1 error format
-      2 - v2 error format
+      full - 
+      metadata - 
+      minimal - 
+      raw - 
   metadataHeaders: string, When given and format is METADATA, only include headers specified. (repeated)
 
 Returns:
   An object of the form:
 
     { # An email message.
-    "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-        # ordering in the inbox.  For normal SMTP-received email, this represents the
-        # time the message was originally accepted by Google, which is more reliable
-        # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-        # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-    "historyId": "A String", # The ID of the last history record that modified this message.
-    "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-      "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-          # container MIME message parts.
-        "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-            # May be empty for MIME container
-            # types that have no message body or when the body data is sent as a
-            # separate attachment. An attachment ID is present if the body data is
-            # contained in a separate attachment.
-        "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-            # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-            # When not present, the entire content of the message part body is
-            # contained in the data field.
-        "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+    &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+    &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+    &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+      &quot;A String&quot;,
+    ],
+    &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+      &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+        &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+        &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+        &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
       },
-      "mimeType": "A String", # The MIME type of the message part.
-      "partId": "A String", # The immutable ID of the message part.
-      "filename": "A String", # The filename of the attachment. Only present if this message part
-          # represents an attachment.
-      "headers": [ # List of headers on this message part. For the top-level message part,
-          # representing the entire message payload, it will contain the standard
-          # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-          # &lt;code&gt;Subject&lt;/code&gt;.
+      &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+      &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
         {
-          "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-              # example, &lt;code&gt;To&lt;/code&gt;.
-          "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-              # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+          &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+          &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
         },
       ],
-      "parts": [ # The child MIME message parts of this part. This only applies to container
-          # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-          # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-          # field is empty. For more information, see
-          # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+      &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+      &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+      &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
         # Object with schema name: MessagePart
       ],
     },
-    "snippet": "A String", # A short part of the message text.
-    "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-        # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-        # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-        # parameter is supplied.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "sizeEstimate": 42, # Estimated size in bytes of the message.
-    "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-        # a thread, the following criteria must be met:
-        # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-        # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-        # request.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-        # be set in compliance with the
-        # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "labelIds": [ # List of IDs of labels applied to this message.
-        # @mutable gmail.users.messages.insert gmail.users.messages.modify
-      "A String",
-    ],
-    "id": "A String", # The immutable ID of the message.
+    &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+    &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+    &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+        # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+        # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+        # - The Subject headers must match.
   }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="import_">import_(userId, body=None, internalDateSource=None, neverMarkSpam=None, x__xgafv=None, media_body=None, deleted=None, media_mime_type=None, processForCalendar=None)</code>
-  <pre>Imports a message into only this user's mailbox, with standard
-email delivery scanning and classification similar to receiving via SMTP.
-Does not send a message.
+    <code class="details" id="import_">import_(userId, body=None, deleted=None, internalDateSource=None, neverMarkSpam=None, processForCalendar=None, media_body=None, media_mime_type=None)</code>
+  <pre>Imports a message into only this user&#x27;s mailbox, with standard email delivery scanning and classification similar to receiving via SMTP. Does not send a message.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   body: object, The request body.
     The object takes the form of:
 
 { # An email message.
-  "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-      # ordering in the inbox.  For normal SMTP-received email, this represents the
-      # time the message was originally accepted by Google, which is more reliable
-      # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-      # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-  "historyId": "A String", # The ID of the last history record that modified this message.
-  "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-    "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-        # container MIME message parts.
-      "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-          # May be empty for MIME container
-          # types that have no message body or when the body data is sent as a
-          # separate attachment. An attachment ID is present if the body data is
-          # contained in a separate attachment.
-      "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-          # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-          # When not present, the entire content of the message part body is
-          # contained in the data field.
-      "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+  &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+  &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+  &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+  &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+    &quot;A String&quot;,
+  ],
+  &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+    &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+      &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+      &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+      &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
     },
-    "mimeType": "A String", # The MIME type of the message part.
-    "partId": "A String", # The immutable ID of the message part.
-    "filename": "A String", # The filename of the attachment. Only present if this message part
-        # represents an attachment.
-    "headers": [ # List of headers on this message part. For the top-level message part,
-        # representing the entire message payload, it will contain the standard
-        # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-        # &lt;code&gt;Subject&lt;/code&gt;.
+    &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+    &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
       {
-        "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-            # example, &lt;code&gt;To&lt;/code&gt;.
-        "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-            # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+        &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+        &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
       },
     ],
-    "parts": [ # The child MIME message parts of this part. This only applies to container
-        # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-        # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-        # field is empty. For more information, see
-        # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+    &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+    &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+    &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
       # Object with schema name: MessagePart
     ],
   },
-  "snippet": "A String", # A short part of the message text.
-  "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-      # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-      # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-      # parameter is supplied.
-      # @mutable gmail.users.messages.insert gmail.users.messages.send
-      # @mutable gmail.users.drafts.create gmail.users.drafts.update
-  "sizeEstimate": 42, # Estimated size in bytes of the message.
-  "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-      # a thread, the following criteria must be met:
-      # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-      # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-      # request.&lt;/li&gt;
-      # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-      # be set in compliance with the
-      # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-      # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-      # @mutable gmail.users.messages.insert gmail.users.messages.send
-      # @mutable gmail.users.drafts.create gmail.users.drafts.update
-  "labelIds": [ # List of IDs of labels applied to this message.
-      # @mutable gmail.users.messages.insert gmail.users.messages.modify
-    "A String",
-  ],
-  "id": "A String", # The immutable ID of the message.
+  &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+  &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+  &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+  &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+      # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+      # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+      # - The Subject headers must match.
 }
 
-  internalDateSource: string, Source for Gmail's internal date of the message.
-  neverMarkSpam: boolean, Ignore the Gmail spam classifier decision and never mark
-this email as SPAM in the mailbox.
-  x__xgafv: string, V1 error format.
+  deleted: boolean, Mark the email as permanently deleted (not TRASH) and only visible in Google Vault to a Vault administrator. Only used for G Suite accounts.
+  internalDateSource: string, Source for Gmail&#x27;s internal date of the message.
     Allowed values
-      1 - v1 error format
-      2 - v2 error format
+      dateHeader - 
+      receivedTime - 
+  neverMarkSpam: boolean, Ignore the Gmail spam classifier decision and never mark this email as SPAM in the mailbox.
+  processForCalendar: boolean, Process calendar invites in the email and add any extracted meetings to the Google Calendar for this user.
   media_body: string, The filename of the media request body, or an instance of a MediaUpload object.
-  deleted: boolean, Mark the email as permanently deleted (not TRASH) and
-only visible in
-&lt;a href="http://support.google.com/vault/"&gt;Google Vault&lt;/a&gt; to
-a Vault administrator. Only used for G Suite accounts.
-  media_mime_type: string, The MIME type of the media request body, or an instance of a MediaUpload object.
-  processForCalendar: boolean, Process calendar invites in the email and add any extracted
-meetings to the Google Calendar for this user.
-
-Returns:
-  An object of the form:
-
-    { # An email message.
-    "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-        # ordering in the inbox.  For normal SMTP-received email, this represents the
-        # time the message was originally accepted by Google, which is more reliable
-        # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-        # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-    "historyId": "A String", # The ID of the last history record that modified this message.
-    "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-      "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-          # container MIME message parts.
-        "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-            # May be empty for MIME container
-            # types that have no message body or when the body data is sent as a
-            # separate attachment. An attachment ID is present if the body data is
-            # contained in a separate attachment.
-        "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-            # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-            # When not present, the entire content of the message part body is
-            # contained in the data field.
-        "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
-      },
-      "mimeType": "A String", # The MIME type of the message part.
-      "partId": "A String", # The immutable ID of the message part.
-      "filename": "A String", # The filename of the attachment. Only present if this message part
-          # represents an attachment.
-      "headers": [ # List of headers on this message part. For the top-level message part,
-          # representing the entire message payload, it will contain the standard
-          # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-          # &lt;code&gt;Subject&lt;/code&gt;.
-        {
-          "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-              # example, &lt;code&gt;To&lt;/code&gt;.
-          "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-              # &lt;code&gt;someuser@example.com&lt;/code&gt;.
-        },
-      ],
-      "parts": [ # The child MIME message parts of this part. This only applies to container
-          # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-          # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-          # field is empty. For more information, see
-          # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
-        # Object with schema name: MessagePart
-      ],
-    },
-    "snippet": "A String", # A short part of the message text.
-    "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-        # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-        # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-        # parameter is supplied.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "sizeEstimate": 42, # Estimated size in bytes of the message.
-    "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-        # a thread, the following criteria must be met:
-        # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-        # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-        # request.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-        # be set in compliance with the
-        # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "labelIds": [ # List of IDs of labels applied to this message.
-        # @mutable gmail.users.messages.insert gmail.users.messages.modify
-      "A String",
-    ],
-    "id": "A String", # The immutable ID of the message.
-  }</pre>
-</div>
-
-<div class="method">
-    <code class="details" id="insert">insert(userId, body=None, internalDateSource=None, media_body=None, deleted=None, x__xgafv=None, media_mime_type=None)</code>
-  <pre>Directly inserts a message into only this user's mailbox similar to
-&lt;code&gt;IMAP APPEND&lt;/code&gt;, bypassing most scanning and classification.
-Does not send a message.
-
-Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
-  body: object, The request body.
-    The object takes the form of:
-
-{ # An email message.
-  "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-      # ordering in the inbox.  For normal SMTP-received email, this represents the
-      # time the message was originally accepted by Google, which is more reliable
-      # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-      # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-  "historyId": "A String", # The ID of the last history record that modified this message.
-  "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-    "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-        # container MIME message parts.
-      "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-          # May be empty for MIME container
-          # types that have no message body or when the body data is sent as a
-          # separate attachment. An attachment ID is present if the body data is
-          # contained in a separate attachment.
-      "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-          # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-          # When not present, the entire content of the message part body is
-          # contained in the data field.
-      "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
-    },
-    "mimeType": "A String", # The MIME type of the message part.
-    "partId": "A String", # The immutable ID of the message part.
-    "filename": "A String", # The filename of the attachment. Only present if this message part
-        # represents an attachment.
-    "headers": [ # List of headers on this message part. For the top-level message part,
-        # representing the entire message payload, it will contain the standard
-        # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-        # &lt;code&gt;Subject&lt;/code&gt;.
-      {
-        "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-            # example, &lt;code&gt;To&lt;/code&gt;.
-        "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-            # &lt;code&gt;someuser@example.com&lt;/code&gt;.
-      },
-    ],
-    "parts": [ # The child MIME message parts of this part. This only applies to container
-        # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-        # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-        # field is empty. For more information, see
-        # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
-      # Object with schema name: MessagePart
-    ],
-  },
-  "snippet": "A String", # A short part of the message text.
-  "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-      # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-      # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-      # parameter is supplied.
-      # @mutable gmail.users.messages.insert gmail.users.messages.send
-      # @mutable gmail.users.drafts.create gmail.users.drafts.update
-  "sizeEstimate": 42, # Estimated size in bytes of the message.
-  "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-      # a thread, the following criteria must be met:
-      # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-      # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-      # request.&lt;/li&gt;
-      # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-      # be set in compliance with the
-      # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-      # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-      # @mutable gmail.users.messages.insert gmail.users.messages.send
-      # @mutable gmail.users.drafts.create gmail.users.drafts.update
-  "labelIds": [ # List of IDs of labels applied to this message.
-      # @mutable gmail.users.messages.insert gmail.users.messages.modify
-    "A String",
-  ],
-  "id": "A String", # The immutable ID of the message.
-}
-
-  internalDateSource: string, Source for Gmail's internal date of the message.
-  media_body: string, The filename of the media request body, or an instance of a MediaUpload object.
-  deleted: boolean, Mark the email as permanently deleted (not TRASH) and
-only visible in
-&lt;a href="http://support.google.com/vault/"&gt;Google Vault&lt;/a&gt; to
-a Vault administrator. Only used for G Suite accounts.
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
   media_mime_type: string, The MIME type of the media request body, or an instance of a MediaUpload object.
 
 Returns:
   An object of the form:
 
     { # An email message.
-    "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-        # ordering in the inbox.  For normal SMTP-received email, this represents the
-        # time the message was originally accepted by Google, which is more reliable
-        # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-        # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-    "historyId": "A String", # The ID of the last history record that modified this message.
-    "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-      "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-          # container MIME message parts.
-        "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-            # May be empty for MIME container
-            # types that have no message body or when the body data is sent as a
-            # separate attachment. An attachment ID is present if the body data is
-            # contained in a separate attachment.
-        "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-            # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-            # When not present, the entire content of the message part body is
-            # contained in the data field.
-        "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+    &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+    &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+    &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+      &quot;A String&quot;,
+    ],
+    &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+      &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+        &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+        &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+        &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
       },
-      "mimeType": "A String", # The MIME type of the message part.
-      "partId": "A String", # The immutable ID of the message part.
-      "filename": "A String", # The filename of the attachment. Only present if this message part
-          # represents an attachment.
-      "headers": [ # List of headers on this message part. For the top-level message part,
-          # representing the entire message payload, it will contain the standard
-          # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-          # &lt;code&gt;Subject&lt;/code&gt;.
+      &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+      &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
         {
-          "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-              # example, &lt;code&gt;To&lt;/code&gt;.
-          "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-              # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+          &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+          &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
         },
       ],
-      "parts": [ # The child MIME message parts of this part. This only applies to container
-          # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-          # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-          # field is empty. For more information, see
-          # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+      &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+      &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+      &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
         # Object with schema name: MessagePart
       ],
     },
-    "snippet": "A String", # A short part of the message text.
-    "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-        # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-        # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-        # parameter is supplied.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "sizeEstimate": 42, # Estimated size in bytes of the message.
-    "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-        # a thread, the following criteria must be met:
-        # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-        # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-        # request.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-        # be set in compliance with the
-        # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "labelIds": [ # List of IDs of labels applied to this message.
-        # @mutable gmail.users.messages.insert gmail.users.messages.modify
-      "A String",
-    ],
-    "id": "A String", # The immutable ID of the message.
+    &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+    &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+    &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+        # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+        # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+        # - The Subject headers must match.
   }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="list">list(userId, labelIds=None, pageToken=None, includeSpamTrash=None, maxResults=None, q=None, x__xgafv=None)</code>
-  <pre>Lists the messages in the user's mailbox.
+    <code class="details" id="insert">insert(userId, body=None, deleted=None, internalDateSource=None, media_body=None, media_mime_type=None)</code>
+  <pre>Directly inserts a message into only this user&#x27;s mailbox similar to IMAP APPEND, bypassing most scanning and classification. Does not send a message.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
+  body: object, The request body.
+    The object takes the form of:
+
+{ # An email message.
+  &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+  &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+  &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+  &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+    &quot;A String&quot;,
+  ],
+  &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+    &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+      &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+      &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+      &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
+    },
+    &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+    &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
+      {
+        &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+        &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
+      },
+    ],
+    &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+    &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+    &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
+      # Object with schema name: MessagePart
+    ],
+  },
+  &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+  &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+  &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+  &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+      # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+      # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+      # - The Subject headers must match.
+}
+
+  deleted: boolean, Mark the email as permanently deleted (not TRASH) and only visible in Google Vault to a Vault administrator. Only used for G Suite accounts.
+  internalDateSource: string, Source for Gmail&#x27;s internal date of the message.
+    Allowed values
+      dateHeader - 
+      receivedTime - 
+  media_body: string, The filename of the media request body, or an instance of a MediaUpload object.
+  media_mime_type: string, The MIME type of the media request body, or an instance of a MediaUpload object.
+
+Returns:
+  An object of the form:
+
+    { # An email message.
+    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+    &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+    &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+    &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+      &quot;A String&quot;,
+    ],
+    &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+      &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+        &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+        &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+        &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
+      },
+      &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+      &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
+        {
+          &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+          &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
+        },
+      ],
+      &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+      &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+      &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
+        # Object with schema name: MessagePart
+      ],
+    },
+    &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+    &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+    &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+        # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+        # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+        # - The Subject headers must match.
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="list">list(userId, includeSpamTrash=None, labelIds=None, maxResults=None, pageToken=None, q=None)</code>
+  <pre>Lists the messages in the user&#x27;s mailbox.
+
+Args:
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
+  includeSpamTrash: boolean, Include messages from SPAM and TRASH in the results.
   labelIds: string, Only return messages with labels that match all of the specified label IDs. (repeated)
-  pageToken: string, Page token to retrieve a specific page of results in the list.
-  includeSpamTrash: boolean, Include messages from &lt;code&gt;SPAM&lt;/code&gt; and &lt;code&gt;TRASH&lt;/code&gt;
-in the results.
   maxResults: integer, Maximum number of messages to return.
-  q: string, Only return messages matching the specified query. Supports the same
-query format as the Gmail search box. For example,
-&lt;code&gt;"from:someuser@example.com rfc822msgid:&amp;lt;somemsgid@example.com&amp;gt;
-is:unread"&lt;/code&gt;. Parameter cannot be used when accessing the api
-using the gmail.metadata scope.
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
+  pageToken: string, Page token to retrieve a specific page of results in the list.
+  q: string, Only return messages matching the specified query. Supports the same query format as the Gmail search box. For example, &quot;from:someuser@example.com rfc822msgid:&lt;somemsgid@example.com&gt; is:unread&quot;. Parameter cannot be used when accessing the api using the gmail.metadata scope.
 
 Returns:
   An object of the form:
 
     {
-    "nextPageToken": "A String", # Token to retrieve the next page of results in the list.
-    "resultSizeEstimate": 42, # Estimated total number of results.
-    "messages": [ # List of messages. Note that each message resource contains only an
-        # &lt;code&gt;id&lt;/code&gt; and a &lt;code&gt;threadId&lt;/code&gt;. Additional message details can
-        # be fetched using the
-        # &lt;a href="/gmail/api/v1/reference/users/messages/get"&gt;messages.get&lt;/a&gt;
-        # method.
+    &quot;messages&quot;: [ # List of messages. Note that each message resource contains only an id and a threadId. Additional message details can be fetched using the messages.get method.
       { # An email message.
-        "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-            # ordering in the inbox.  For normal SMTP-received email, this represents the
-            # time the message was originally accepted by Google, which is more reliable
-            # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-            # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-        "historyId": "A String", # The ID of the last history record that modified this message.
-        "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-          "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-              # container MIME message parts.
-            "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-                # May be empty for MIME container
-                # types that have no message body or when the body data is sent as a
-                # separate attachment. An attachment ID is present if the body data is
-                # contained in a separate attachment.
-            "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-                # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-                # When not present, the entire content of the message part body is
-                # contained in the data field.
-            "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+        &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+        &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+        &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+        &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+          &quot;A String&quot;,
+        ],
+        &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+          &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+            &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+            &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+            &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
           },
-          "mimeType": "A String", # The MIME type of the message part.
-          "partId": "A String", # The immutable ID of the message part.
-          "filename": "A String", # The filename of the attachment. Only present if this message part
-              # represents an attachment.
-          "headers": [ # List of headers on this message part. For the top-level message part,
-              # representing the entire message payload, it will contain the standard
-              # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-              # &lt;code&gt;Subject&lt;/code&gt;.
+          &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+          &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
             {
-              "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-                  # example, &lt;code&gt;To&lt;/code&gt;.
-              "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-                  # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+              &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+              &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
             },
           ],
-          "parts": [ # The child MIME message parts of this part. This only applies to container
-              # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-              # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-              # field is empty. For more information, see
-              # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+          &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+          &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+          &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
             # Object with schema name: MessagePart
           ],
         },
-        "snippet": "A String", # A short part of the message text.
-        "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-            # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-            # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-            # parameter is supplied.
-            # @mutable gmail.users.messages.insert gmail.users.messages.send
-            # @mutable gmail.users.drafts.create gmail.users.drafts.update
-        "sizeEstimate": 42, # Estimated size in bytes of the message.
-        "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-            # a thread, the following criteria must be met:
-            # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-            # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-            # request.&lt;/li&gt;
-            # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-            # be set in compliance with the
-            # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-            # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-            # @mutable gmail.users.messages.insert gmail.users.messages.send
-            # @mutable gmail.users.drafts.create gmail.users.drafts.update
-        "labelIds": [ # List of IDs of labels applied to this message.
-            # @mutable gmail.users.messages.insert gmail.users.messages.modify
-          "A String",
-        ],
-        "id": "A String", # The immutable ID of the message.
+        &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+        &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+        &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+        &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+            # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+            # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+            # - The Subject headers must match.
       },
     ],
+    &quot;nextPageToken&quot;: &quot;A String&quot;, # Token to retrieve the next page of results in the list.
+    &quot;resultSizeEstimate&quot;: 42, # Estimated total number of results.
   }</pre>
 </div>
 
@@ -730,443 +472,247 @@
   previous_response: The response from the request for the previous page. (required)
 
 Returns:
-  A request object that you can call 'execute()' on to request the next
+  A request object that you can call &#x27;execute()&#x27; on to request the next
   page. Returns None if there are no more items in the collection.
     </pre>
 </div>
 
 <div class="method">
-    <code class="details" id="modify">modify(userId, id, body=None, x__xgafv=None)</code>
+    <code class="details" id="modify">modify(userId, id, body=None)</code>
   <pre>Modifies the labels on the specified message.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   id: string, The ID of the message to modify. (required)
   body: object, The request body.
     The object takes the form of:
 
 {
-    "removeLabelIds": [ # A list IDs of labels to remove from this message.
-      "A String",
+    &quot;addLabelIds&quot;: [ # A list of IDs of labels to add to this message.
+      &quot;A String&quot;,
     ],
-    "addLabelIds": [ # A list of IDs of labels to add to this message.
-      "A String",
+    &quot;removeLabelIds&quot;: [ # A list IDs of labels to remove from this message.
+      &quot;A String&quot;,
     ],
   }
 
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
 
 Returns:
   An object of the form:
 
     { # An email message.
-    "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-        # ordering in the inbox.  For normal SMTP-received email, this represents the
-        # time the message was originally accepted by Google, which is more reliable
-        # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-        # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-    "historyId": "A String", # The ID of the last history record that modified this message.
-    "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-      "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-          # container MIME message parts.
-        "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-            # May be empty for MIME container
-            # types that have no message body or when the body data is sent as a
-            # separate attachment. An attachment ID is present if the body data is
-            # contained in a separate attachment.
-        "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-            # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-            # When not present, the entire content of the message part body is
-            # contained in the data field.
-        "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+    &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+    &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+    &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+      &quot;A String&quot;,
+    ],
+    &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+      &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+        &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+        &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+        &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
       },
-      "mimeType": "A String", # The MIME type of the message part.
-      "partId": "A String", # The immutable ID of the message part.
-      "filename": "A String", # The filename of the attachment. Only present if this message part
-          # represents an attachment.
-      "headers": [ # List of headers on this message part. For the top-level message part,
-          # representing the entire message payload, it will contain the standard
-          # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-          # &lt;code&gt;Subject&lt;/code&gt;.
+      &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+      &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
         {
-          "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-              # example, &lt;code&gt;To&lt;/code&gt;.
-          "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-              # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+          &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+          &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
         },
       ],
-      "parts": [ # The child MIME message parts of this part. This only applies to container
-          # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-          # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-          # field is empty. For more information, see
-          # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+      &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+      &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+      &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
         # Object with schema name: MessagePart
       ],
     },
-    "snippet": "A String", # A short part of the message text.
-    "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-        # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-        # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-        # parameter is supplied.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "sizeEstimate": 42, # Estimated size in bytes of the message.
-    "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-        # a thread, the following criteria must be met:
-        # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-        # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-        # request.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-        # be set in compliance with the
-        # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "labelIds": [ # List of IDs of labels applied to this message.
-        # @mutable gmail.users.messages.insert gmail.users.messages.modify
-      "A String",
-    ],
-    "id": "A String", # The immutable ID of the message.
+    &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+    &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+    &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+        # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+        # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+        # - The Subject headers must match.
   }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="send">send(userId, body=None, media_body=None, media_mime_type=None, x__xgafv=None)</code>
-  <pre>Sends the specified message to the recipients in the
-&lt;code&gt;To&lt;/code&gt;, &lt;code&gt;Cc&lt;/code&gt;, and &lt;code&gt;Bcc&lt;/code&gt; headers.
+    <code class="details" id="send">send(userId, body=None, media_body=None, media_mime_type=None)</code>
+  <pre>Sends the specified message to the recipients in the To, Cc, and Bcc headers.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   body: object, The request body.
     The object takes the form of:
 
 { # An email message.
-  "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-      # ordering in the inbox.  For normal SMTP-received email, this represents the
-      # time the message was originally accepted by Google, which is more reliable
-      # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-      # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-  "historyId": "A String", # The ID of the last history record that modified this message.
-  "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-    "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-        # container MIME message parts.
-      "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-          # May be empty for MIME container
-          # types that have no message body or when the body data is sent as a
-          # separate attachment. An attachment ID is present if the body data is
-          # contained in a separate attachment.
-      "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-          # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-          # When not present, the entire content of the message part body is
-          # contained in the data field.
-      "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+  &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+  &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+  &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+  &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+    &quot;A String&quot;,
+  ],
+  &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+    &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+      &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+      &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+      &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
     },
-    "mimeType": "A String", # The MIME type of the message part.
-    "partId": "A String", # The immutable ID of the message part.
-    "filename": "A String", # The filename of the attachment. Only present if this message part
-        # represents an attachment.
-    "headers": [ # List of headers on this message part. For the top-level message part,
-        # representing the entire message payload, it will contain the standard
-        # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-        # &lt;code&gt;Subject&lt;/code&gt;.
+    &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+    &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
       {
-        "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-            # example, &lt;code&gt;To&lt;/code&gt;.
-        "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-            # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+        &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+        &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
       },
     ],
-    "parts": [ # The child MIME message parts of this part. This only applies to container
-        # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-        # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-        # field is empty. For more information, see
-        # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+    &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+    &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+    &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
       # Object with schema name: MessagePart
     ],
   },
-  "snippet": "A String", # A short part of the message text.
-  "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-      # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-      # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-      # parameter is supplied.
-      # @mutable gmail.users.messages.insert gmail.users.messages.send
-      # @mutable gmail.users.drafts.create gmail.users.drafts.update
-  "sizeEstimate": 42, # Estimated size in bytes of the message.
-  "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-      # a thread, the following criteria must be met:
-      # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-      # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-      # request.&lt;/li&gt;
-      # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-      # be set in compliance with the
-      # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-      # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-      # @mutable gmail.users.messages.insert gmail.users.messages.send
-      # @mutable gmail.users.drafts.create gmail.users.drafts.update
-  "labelIds": [ # List of IDs of labels applied to this message.
-      # @mutable gmail.users.messages.insert gmail.users.messages.modify
-    "A String",
-  ],
-  "id": "A String", # The immutable ID of the message.
+  &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+  &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+  &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+  &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+      # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+      # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+      # - The Subject headers must match.
 }
 
   media_body: string, The filename of the media request body, or an instance of a MediaUpload object.
   media_mime_type: string, The MIME type of the media request body, or an instance of a MediaUpload object.
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
 
 Returns:
   An object of the form:
 
     { # An email message.
-    "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-        # ordering in the inbox.  For normal SMTP-received email, this represents the
-        # time the message was originally accepted by Google, which is more reliable
-        # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-        # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-    "historyId": "A String", # The ID of the last history record that modified this message.
-    "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-      "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-          # container MIME message parts.
-        "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-            # May be empty for MIME container
-            # types that have no message body or when the body data is sent as a
-            # separate attachment. An attachment ID is present if the body data is
-            # contained in a separate attachment.
-        "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-            # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-            # When not present, the entire content of the message part body is
-            # contained in the data field.
-        "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+    &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+    &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+    &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+      &quot;A String&quot;,
+    ],
+    &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+      &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+        &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+        &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+        &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
       },
-      "mimeType": "A String", # The MIME type of the message part.
-      "partId": "A String", # The immutable ID of the message part.
-      "filename": "A String", # The filename of the attachment. Only present if this message part
-          # represents an attachment.
-      "headers": [ # List of headers on this message part. For the top-level message part,
-          # representing the entire message payload, it will contain the standard
-          # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-          # &lt;code&gt;Subject&lt;/code&gt;.
+      &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+      &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
         {
-          "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-              # example, &lt;code&gt;To&lt;/code&gt;.
-          "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-              # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+          &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+          &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
         },
       ],
-      "parts": [ # The child MIME message parts of this part. This only applies to container
-          # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-          # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-          # field is empty. For more information, see
-          # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+      &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+      &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+      &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
         # Object with schema name: MessagePart
       ],
     },
-    "snippet": "A String", # A short part of the message text.
-    "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-        # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-        # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-        # parameter is supplied.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "sizeEstimate": 42, # Estimated size in bytes of the message.
-    "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-        # a thread, the following criteria must be met:
-        # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-        # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-        # request.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-        # be set in compliance with the
-        # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "labelIds": [ # List of IDs of labels applied to this message.
-        # @mutable gmail.users.messages.insert gmail.users.messages.modify
-      "A String",
-    ],
-    "id": "A String", # The immutable ID of the message.
+    &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+    &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+    &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+        # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+        # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+        # - The Subject headers must match.
   }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="trash">trash(userId, id, x__xgafv=None)</code>
+    <code class="details" id="trash">trash(userId, id)</code>
   <pre>Moves the specified message to the trash.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   id: string, The ID of the message to Trash. (required)
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
 
 Returns:
   An object of the form:
 
     { # An email message.
-    "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-        # ordering in the inbox.  For normal SMTP-received email, this represents the
-        # time the message was originally accepted by Google, which is more reliable
-        # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-        # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-    "historyId": "A String", # The ID of the last history record that modified this message.
-    "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-      "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-          # container MIME message parts.
-        "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-            # May be empty for MIME container
-            # types that have no message body or when the body data is sent as a
-            # separate attachment. An attachment ID is present if the body data is
-            # contained in a separate attachment.
-        "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-            # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-            # When not present, the entire content of the message part body is
-            # contained in the data field.
-        "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+    &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+    &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+    &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+      &quot;A String&quot;,
+    ],
+    &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+      &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+        &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+        &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+        &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
       },
-      "mimeType": "A String", # The MIME type of the message part.
-      "partId": "A String", # The immutable ID of the message part.
-      "filename": "A String", # The filename of the attachment. Only present if this message part
-          # represents an attachment.
-      "headers": [ # List of headers on this message part. For the top-level message part,
-          # representing the entire message payload, it will contain the standard
-          # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-          # &lt;code&gt;Subject&lt;/code&gt;.
+      &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+      &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
         {
-          "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-              # example, &lt;code&gt;To&lt;/code&gt;.
-          "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-              # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+          &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+          &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
         },
       ],
-      "parts": [ # The child MIME message parts of this part. This only applies to container
-          # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-          # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-          # field is empty. For more information, see
-          # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+      &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+      &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+      &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
         # Object with schema name: MessagePart
       ],
     },
-    "snippet": "A String", # A short part of the message text.
-    "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-        # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-        # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-        # parameter is supplied.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "sizeEstimate": 42, # Estimated size in bytes of the message.
-    "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-        # a thread, the following criteria must be met:
-        # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-        # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-        # request.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-        # be set in compliance with the
-        # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "labelIds": [ # List of IDs of labels applied to this message.
-        # @mutable gmail.users.messages.insert gmail.users.messages.modify
-      "A String",
-    ],
-    "id": "A String", # The immutable ID of the message.
+    &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+    &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+    &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+        # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+        # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+        # - The Subject headers must match.
   }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="untrash">untrash(userId, id, x__xgafv=None)</code>
+    <code class="details" id="untrash">untrash(userId, id)</code>
   <pre>Removes the specified message from the trash.
 
 Args:
-  userId: string, The user's email address. The special value &lt;code&gt;me&lt;/code&gt;
-can be used to indicate the authenticated user. (required)
+  userId: string, The user&#x27;s email address. The special value me can be used to indicate the authenticated user. (required)
   id: string, The ID of the message to remove from Trash. (required)
-  x__xgafv: string, V1 error format.
-    Allowed values
-      1 - v1 error format
-      2 - v2 error format
 
 Returns:
   An object of the form:
 
     { # An email message.
-    "internalDate": "A String", # The internal message creation timestamp (epoch ms), which determines
-        # ordering in the inbox.  For normal SMTP-received email, this represents the
-        # time the message was originally accepted by Google, which is more reliable
-        # than the &lt;code&gt;Date&lt;/code&gt; header. However, for API-migrated mail, it can
-        # be configured by client to be based on the &lt;code&gt;Date&lt;/code&gt; header.
-    "historyId": "A String", # The ID of the last history record that modified this message.
-    "payload": { # A single MIME message part. # The parsed email structure in the message parts.
-      "body": { # The body of a single MIME message part. # The message part body for this part, which may be empty for
-          # container MIME message parts.
-        "data": "A String", # The body data of a MIME message part as a base64url encoded string.
-            # May be empty for MIME container
-            # types that have no message body or when the body data is sent as a
-            # separate attachment. An attachment ID is present if the body data is
-            # contained in a separate attachment.
-        "attachmentId": "A String", # When present, contains the ID of an external attachment that can be
-            # retrieved in a separate &lt;code&gt;messages.attachments.get&lt;/code&gt; request.
-            # When not present, the entire content of the message part body is
-            # contained in the data field.
-        "size": 42, # Number of bytes for the message part data (encoding notwithstanding).
+    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this message.
+    &quot;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
+    &quot;internalDate&quot;: &quot;A String&quot;, # The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.
+    &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
+      &quot;A String&quot;,
+    ],
+    &quot;payload&quot;: { # A single MIME message part. # The parsed email structure in the message parts.
+      &quot;body&quot;: { # The body of a single MIME message part. # The message part body for this part, which may be empty for container MIME message parts.
+        &quot;attachmentId&quot;: &quot;A String&quot;, # When present, contains the ID of an external attachment that can be retrieved in a separate messages.attachments.get request. When not present, the entire content of the message part body is contained in the data field.
+        &quot;data&quot;: &quot;A String&quot;, # The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment.
+        &quot;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
       },
-      "mimeType": "A String", # The MIME type of the message part.
-      "partId": "A String", # The immutable ID of the message part.
-      "filename": "A String", # The filename of the attachment. Only present if this message part
-          # represents an attachment.
-      "headers": [ # List of headers on this message part. For the top-level message part,
-          # representing the entire message payload, it will contain the standard
-          # RFC 2822 email headers such as &lt;code&gt;To&lt;/code&gt;, &lt;code&gt;From&lt;/code&gt;, and
-          # &lt;code&gt;Subject&lt;/code&gt;.
+      &quot;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
+      &quot;headers&quot;: [ # List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.
         {
-          "name": "A String", # The name of the header before the &lt;code&gt;:&lt;/code&gt; separator. For
-              # example, &lt;code&gt;To&lt;/code&gt;.
-          "value": "A String", # The value of the header after the &lt;code&gt;:&lt;/code&gt; separator. For example,
-              # &lt;code&gt;someuser@example.com&lt;/code&gt;.
+          &quot;name&quot;: &quot;A String&quot;, # The name of the header before the : separator. For example, To.
+          &quot;value&quot;: &quot;A String&quot;, # The value of the header after the : separator. For example, someuser@example.com.
         },
       ],
-      "parts": [ # The child MIME message parts of this part. This only applies to container
-          # MIME message parts, for example &lt;code&gt;multipart/*&lt;/code&gt;. For non-
-          # container MIME message part types, such as &lt;code&gt;text/plain&lt;/code&gt;, this
-          # field is empty. For more information, see
-          # &lt;a href="http://www.ietf.org/rfc/rfc1521.txt"&gt;RFC 1521&lt;/a&gt;.
+      &quot;mimeType&quot;: &quot;A String&quot;, # The MIME type of the message part.
+      &quot;partId&quot;: &quot;A String&quot;, # The immutable ID of the message part.
+      &quot;parts&quot;: [ # The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.
         # Object with schema name: MessagePart
       ],
     },
-    "snippet": "A String", # A short part of the message text.
-    "raw": "A String", # The entire email message in an RFC 2822 formatted and base64url
-        # encoded string. Returned in &lt;code&gt;messages.get&lt;/code&gt; and
-        # &lt;code&gt;drafts.get&lt;/code&gt; responses when the &lt;code&gt;format=RAW&lt;/code&gt;
-        # parameter is supplied.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "sizeEstimate": 42, # Estimated size in bytes of the message.
-    "threadId": "A String", # The ID of the thread the message belongs to. To add a message or draft to
-        # a thread, the following criteria must be met:
-        # &lt;ol&gt;&lt;li&gt;The requested &lt;code&gt;threadId&lt;/code&gt; must be specified on the
-        # &lt;code&gt;Message&lt;/code&gt; or &lt;code&gt;Draft.Message&lt;/code&gt; you supply with your
-        # request.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;References&lt;/code&gt; and &lt;code&gt;In-Reply-To&lt;/code&gt; headers must
-        # be set in compliance with the
-        # &lt;a href="https://tools.ietf.org/html/rfc2822"&gt;RFC 2822&lt;/a&gt; standard.&lt;/li&gt;
-        # &lt;li&gt;The &lt;code&gt;Subject&lt;/code&gt; headers must match.
-        # @mutable gmail.users.messages.insert gmail.users.messages.send
-        # @mutable gmail.users.drafts.create gmail.users.drafts.update
-    "labelIds": [ # List of IDs of labels applied to this message.
-        # @mutable gmail.users.messages.insert gmail.users.messages.modify
-      "A String",
-    ],
-    "id": "A String", # The immutable ID of the message.
+    &quot;raw&quot;: &quot;A String&quot;, # The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.
+    &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
+    &quot;threadId&quot;: &quot;A String&quot;, # The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:
+        # - The requested threadId must be specified on the Message or Draft.Message you supply with your request.
+        # - The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
+        # - The Subject headers must match.
   }</pre>
 </div>