chore: update generated docs (#1115)

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Source-Link: https://github.com/googleapis/discovery-artifact-manager/commit/0bed8bdae25d545e796cfcdd7a9bfffff11e69da
Source-Link: https://github.com/googleapis/synthtool/commit/c2de32114ec484aa708d32012d1fa8d75232daf5
diff --git a/docs/dyn/gmail_v1.users.threads.html b/docs/dyn/gmail_v1.users.threads.html
index 30c6ee0..ce56458 100644
--- a/docs/dyn/gmail_v1.users.threads.html
+++ b/docs/dyn/gmail_v1.users.threads.html
@@ -84,7 +84,7 @@
   <code><a href="#get">get(userId, id, format=None, metadataHeaders=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Gets the specified thread.</p>
 <p class="toc_element">
-  <code><a href="#list">list(userId, maxResults=None, includeSpamTrash=None, pageToken=None, labelIds=None, q=None, x__xgafv=None)</a></code></p>
+  <code><a href="#list">list(userId, pageToken=None, includeSpamTrash=None, q=None, maxResults=None, labelIds=None, x__xgafv=None)</a></code></p>
 <p class="firstline">Lists the threads in the user's mailbox.</p>
 <p class="toc_element">
   <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
@@ -141,55 +141,55 @@
 
     { # A collection of messages representing a conversation.
     &quot;id&quot;: &quot;A String&quot;, # The unique ID of the thread.
-    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
-    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
     &quot;messages&quot;: [ # The list of messages in the thread.
       { # An email message.
+        &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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
         &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
           &quot;A String&quot;,
         ],
-        &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;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
         &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+        &quot;id&quot;: &quot;A String&quot;, # 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;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;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
-            &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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
-          &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;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;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;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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
         },
-        &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;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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
         &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this 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;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
   }</pre>
 </div>
 
 <div class="method">
-    <code class="details" id="list">list(userId, maxResults=None, includeSpamTrash=None, pageToken=None, labelIds=None, q=None, x__xgafv=None)</code>
+    <code class="details" id="list">list(userId, pageToken=None, includeSpamTrash=None, q=None, maxResults=None, labelIds=None, x__xgafv=None)</code>
   <pre>Lists the threads 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)
-  maxResults: integer, Maximum number of threads to return.
-  includeSpamTrash: boolean, Include threads from `SPAM` and `TRASH` in the results.
   pageToken: string, Page token to retrieve a specific page of results in the list.
-  labelIds: string, Only return threads with labels that match all of the specified label IDs. (repeated)
+  includeSpamTrash: boolean, Include threads from `SPAM` and `TRASH` in the results.
   q: string, Only return threads matching the specified query. Supports the same query format as the Gmail search box. For example, `&quot;from:someuser@example.com rfc822msgid: is:unread&quot;`. Parameter cannot be used when accessing the api using the gmail.metadata scope.
+  maxResults: integer, Maximum number of threads to return.
+  labelIds: string, Only return threads with labels that match all of the specified label IDs. (repeated)
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format
@@ -199,48 +199,48 @@
   An object of the form:
 
     {
+    &quot;nextPageToken&quot;: &quot;A String&quot;, # Page token to retrieve the next page of results in the list.
     &quot;resultSizeEstimate&quot;: 42, # Estimated total number of results.
     &quot;threads&quot;: [ # List of threads. Note that each thread resource does not contain a list of `messages`. The list of `messages` for a given thread can be fetched using the threads.get method.
       { # A collection of messages representing a conversation.
         &quot;id&quot;: &quot;A String&quot;, # The unique ID of the thread.
-        &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
-        &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
         &quot;messages&quot;: [ # The list of messages in the thread.
           { # An email message.
+            &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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
             &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
               &quot;A String&quot;,
             ],
-            &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;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
             &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+            &quot;id&quot;: &quot;A String&quot;, # 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;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;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
-                &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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
-              &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;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;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;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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
             },
-            &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;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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
             &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this 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;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
+        &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
       },
     ],
-    &quot;nextPageToken&quot;: &quot;A String&quot;, # Page token to retrieve the next page of results in the list.
   }</pre>
 </div>
 
@@ -269,10 +269,10 @@
     The object takes the form of:
 
 {
-    &quot;addLabelIds&quot;: [ # A list of IDs of labels to add to this thread.
+    &quot;removeLabelIds&quot;: [ # A list of IDs of labels to remove from this thread.
       &quot;A String&quot;,
     ],
-    &quot;removeLabelIds&quot;: [ # A list of IDs of labels to remove from this thread.
+    &quot;addLabelIds&quot;: [ # A list of IDs of labels to add to this thread.
       &quot;A String&quot;,
     ],
   }
@@ -287,41 +287,41 @@
 
     { # A collection of messages representing a conversation.
     &quot;id&quot;: &quot;A String&quot;, # The unique ID of the thread.
-    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
-    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
     &quot;messages&quot;: [ # The list of messages in the thread.
       { # An email message.
+        &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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
         &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
           &quot;A String&quot;,
         ],
-        &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;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
         &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+        &quot;id&quot;: &quot;A String&quot;, # 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;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;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
-            &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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
-          &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;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;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;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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
         },
-        &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;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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
         &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this 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;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
   }</pre>
 </div>
 
@@ -342,41 +342,41 @@
 
     { # A collection of messages representing a conversation.
     &quot;id&quot;: &quot;A String&quot;, # The unique ID of the thread.
-    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
-    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
     &quot;messages&quot;: [ # The list of messages in the thread.
       { # An email message.
+        &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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
         &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
           &quot;A String&quot;,
         ],
-        &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;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
         &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+        &quot;id&quot;: &quot;A String&quot;, # 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;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;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
-            &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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
-          &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;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;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;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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
         },
-        &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;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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
         &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this 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;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
   }</pre>
 </div>
 
@@ -397,41 +397,41 @@
 
     { # A collection of messages representing a conversation.
     &quot;id&quot;: &quot;A String&quot;, # The unique ID of the thread.
-    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
-    &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
     &quot;messages&quot;: [ # The list of messages in the thread.
       { # An email message.
+        &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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
         &quot;labelIds&quot;: [ # List of IDs of labels applied to this message.
           &quot;A String&quot;,
         ],
-        &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;id&quot;: &quot;A String&quot;, # The immutable ID of the message.
         &quot;sizeEstimate&quot;: 42, # Estimated size in bytes of the message.
+        &quot;id&quot;: &quot;A String&quot;, # 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;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;size&quot;: 42, # Number of bytes for the message part data (encoding notwithstanding).
-            &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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
-          &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;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;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;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;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;filename&quot;: &quot;A String&quot;, # The filename of the attachment. Only present if this message part represents an attachment.
         },
-        &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;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: 1. The requested `threadId` must be specified on the `Message` or `Draft.Message` you supply with your request. 2. The `References` and `In-Reply-To` headers must be set in compliance with the [RFC 2822](https://tools.ietf.org/html/rfc2822) standard. 3. The `Subject` headers must match.
         &quot;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this 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;historyId&quot;: &quot;A String&quot;, # The ID of the last history record that modified this thread.
+    &quot;snippet&quot;: &quot;A String&quot;, # A short part of the message text.
   }</pre>
 </div>