docs: update generated docs (#981)

diff --git a/docs/dyn/dialogflow_v2beta1.projects.agent.knowledgeBases.documents.html b/docs/dyn/dialogflow_v2beta1.projects.agent.knowledgeBases.documents.html
index 320daad..a29ef23 100644
--- a/docs/dyn/dialogflow_v2beta1.projects.agent.knowledgeBases.documents.html
+++ b/docs/dyn/dialogflow_v2beta1.projects.agent.knowledgeBases.documents.html
@@ -109,77 +109,80 @@
   body: object, The request body.
     The object takes the form of:
 
-{ # A document resource.
-    # 
-    # Note: The `projects.agent.knowledgeBases.documents` resource is deprecated;
-    # only use `projects.knowledgeBases.documents`.
-  "knowledgeTypes": [ # Required. The knowledge type of document content.
-    "A String",
-  ],
-  "displayName": "A String", # Required. The display name of the document. The name must be 1024 bytes or
-      # less; otherwise, the creation request fails.
-  "rawContent": "A String", # The raw content of the document. This field is only permitted for
-      # EXTRACTIVE_QA and FAQ knowledge types.
-  "enableAutoReload": True or False, # Optional. If true, we try to automatically reload the document every day
-      # (at a time picked by the system). If false or unspecified, we don't try
-      # to automatically reload the document.
+{ # A knowledge document to be used by a KnowledgeBase.
       # 
-      # Currently you can only enable automatic reload for documents sourced from
-      # a public url, see `source` field for the source types.
+      # For more information, see the [knowledge base
+      # guide](https://cloud.google.com/dialogflow/docs/how/knowledge-bases).
       # 
-      # Reload status can be tracked in `latest_reload_status`. If a reload
-      # fails, we will keep the document unchanged.
-      # 
-      # If a reload fails with internal errors, the system will try to reload the
-      # document on the next day.
-      # If a reload fails with non-retriable errors (e.g. PERMISION_DENIED), the
-      # system will not try to reload the document anymore. You need to manually
-      # reload the document successfully by calling `ReloadDocument` and clear the
-      # errors.
-  "contentUri": "A String", # The URI where the file content is located.
-      # 
-      # For documents stored in Google Cloud Storage, these URIs must have
-      # the form `gs://<bucket-name>/<object-name>`.
-      # 
-      # NOTE: External URLs must correspond to public webpages, i.e., they must
-      # be indexed by Google Search. In particular, URLs for showing documents in
-      # Google Cloud Storage (i.e. the URL in your browser) are not supported.
-      # Instead use the `gs://` format URI described above.
-  "latestReloadStatus": { # The status of a reload attempt. # Output only. The time and status of the latest reload.
-      # This reload may have been triggered automatically or manually
-      # and may not have succeeded.
-    "status": { # The `Status` type defines a logical error model that is suitable for # Output only. The status of a reload attempt or the initial load.
-        # different programming environments, including REST APIs and RPC APIs. It is
-        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
-        # three pieces of data: error code, error message, and error details.
-        #
-        # You can find out more about this error model and how to work with it in the
-        # [API Design Guide](https://cloud.google.com/apis/design/errors).
-      "message": "A String", # A developer-facing error message, which should be in English. Any
-          # user-facing error message should be localized and sent in the
-          # google.rpc.Status.details field, or localized by the client.
-      "details": [ # A list of messages that carry the error details.  There is a common set of
-          # message types for APIs to use.
-        {
-          "a_key": "", # Properties of the object. Contains field @type with type URL.
-        },
-      ],
-      "code": 42, # The status code, which should be an enum value of google.rpc.Code.
+      # Note: The `projects.agent.knowledgeBases.documents` resource is deprecated;
+      # only use `projects.knowledgeBases.documents`.
+    "displayName": "A String", # Required. The display name of the document. The name must be 1024 bytes or
+        # less; otherwise, the creation request fails.
+    "enableAutoReload": True or False, # Optional. If true, we try to automatically reload the document every day
+        # (at a time picked by the system). If false or unspecified, we don't try
+        # to automatically reload the document.
+        # 
+        # Currently you can only enable automatic reload for documents sourced from
+        # a public url, see `source` field for the source types.
+        # 
+        # Reload status can be tracked in `latest_reload_status`. If a reload
+        # fails, we will keep the document unchanged.
+        # 
+        # If a reload fails with internal errors, the system will try to reload the
+        # document on the next day.
+        # If a reload fails with non-retriable errors (e.g. PERMISION_DENIED), the
+        # system will not try to reload the document anymore. You need to manually
+        # reload the document successfully by calling `ReloadDocument` and clear the
+        # errors.
+    "latestReloadStatus": { # The status of a reload attempt. # Output only. The time and status of the latest reload.
+        # This reload may have been triggered automatically or manually
+        # and may not have succeeded.
+      "status": { # The `Status` type defines a logical error model that is suitable for # Output only. The status of a reload attempt or the initial load.
+          # different programming environments, including REST APIs and RPC APIs. It is
+          # used by [gRPC](https://github.com/grpc). Each `Status` message contains
+          # three pieces of data: error code, error message, and error details.
+          #
+          # You can find out more about this error model and how to work with it in the
+          # [API Design Guide](https://cloud.google.com/apis/design/errors).
+        "code": 42, # The status code, which should be an enum value of google.rpc.Code.
+        "details": [ # A list of messages that carry the error details.  There is a common set of
+            # message types for APIs to use.
+          {
+            "a_key": "", # Properties of the object. Contains field @type with type URL.
+          },
+        ],
+        "message": "A String", # A developer-facing error message, which should be in English. Any
+            # user-facing error message should be localized and sent in the
+            # google.rpc.Status.details field, or localized by the client.
+      },
+      "time": "A String", # Output only. The time of a reload attempt.
+          # This reload may have been triggered automatically or manually and may
+          # not have succeeded.
     },
-    "time": "A String", # Output only. The time of a reload attempt.
-        # This reload may have been triggered automatically or manually and may
-        # not have succeeded.
-  },
-  "name": "A String", # Optional. The document resource name.
-      # The name must be empty when creating a document.
-      # Format: `projects/<Project ID>/knowledgeBases/<Knowledge Base
-      # ID>/documents/<Document ID>`.
-  "content": "A String", # The raw content of the document. This field is only permitted for
-      # EXTRACTIVE_QA and FAQ knowledge types.
-      # Note: This field is in the process of being deprecated, please use
-      # raw_content instead.
-  "mimeType": "A String", # Required. The MIME type of this document.
-}
+    "content": "A String", # The raw content of the document. This field is only permitted for
+        # EXTRACTIVE_QA and FAQ knowledge types.
+        # Note: This field is in the process of being deprecated, please use
+        # raw_content instead.
+    "knowledgeTypes": [ # Required. The knowledge type of document content.
+      "A String",
+    ],
+    "contentUri": "A String", # The URI where the file content is located.
+        # 
+        # For documents stored in Google Cloud Storage, these URIs must have
+        # the form `gs://<bucket-name>/<object-name>`.
+        # 
+        # NOTE: External URLs must correspond to public webpages, i.e., they must
+        # be indexed by Google Search. In particular, URLs for showing documents in
+        # Google Cloud Storage (i.e. the URL in your browser) are not supported.
+        # Instead use the `gs://` format URI described above.
+    "mimeType": "A String", # Required. The MIME type of this document.
+    "name": "A String", # Optional. The document resource name.
+        # The name must be empty when creating a document.
+        # Format: `projects/<Project ID>/knowledgeBases/<Knowledge Base
+        # ID>/documents/<Document ID>`.
+    "rawContent": "A String", # The raw content of the document. This field is only permitted for
+        # EXTRACTIVE_QA and FAQ knowledge types.
+  }
 
   x__xgafv: string, V1 error format.
     Allowed values
@@ -194,33 +197,6 @@
     "name": "A String", # The server-assigned name, which is only unique within the same service that
         # originally returns it. If you use the default HTTP mapping, the
         # `name` should be a resource name ending with `operations/{unique_id}`.
-    "error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
-        # different programming environments, including REST APIs and RPC APIs. It is
-        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
-        # three pieces of data: error code, error message, and error details.
-        #
-        # You can find out more about this error model and how to work with it in the
-        # [API Design Guide](https://cloud.google.com/apis/design/errors).
-      "message": "A String", # A developer-facing error message, which should be in English. Any
-          # user-facing error message should be localized and sent in the
-          # google.rpc.Status.details field, or localized by the client.
-      "details": [ # A list of messages that carry the error details.  There is a common set of
-          # message types for APIs to use.
-        {
-          "a_key": "", # Properties of the object. Contains field @type with type URL.
-        },
-      ],
-      "code": 42, # The status code, which should be an enum value of google.rpc.Code.
-    },
-    "metadata": { # Service-specific metadata associated with the operation.  It typically
-        # contains progress information and common metadata such as create time.
-        # Some services might not provide such metadata.  Any method that returns a
-        # long-running operation should document the metadata type, if any.
-      "a_key": "", # Properties of the object. Contains field @type with type URL.
-    },
-    "done": True or False, # If the value is `false`, it means the operation is still in progress.
-        # If `true`, the operation is completed, and either `error` or `response` is
-        # available.
     "response": { # The normal response of the operation in case of success.  If the original
         # method returns no data on success, such as `Delete`, the response is
         # `google.protobuf.Empty`.  If the original method is standard
@@ -231,6 +207,33 @@
         # `TakeSnapshotResponse`.
       "a_key": "", # Properties of the object. Contains field @type with type URL.
     },
+    "done": True or False, # If the value is `false`, it means the operation is still in progress.
+        # If `true`, the operation is completed, and either `error` or `response` is
+        # available.
+    "error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
+        # different programming environments, including REST APIs and RPC APIs. It is
+        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
+        # three pieces of data: error code, error message, and error details.
+        #
+        # You can find out more about this error model and how to work with it in the
+        # [API Design Guide](https://cloud.google.com/apis/design/errors).
+      "code": 42, # The status code, which should be an enum value of google.rpc.Code.
+      "details": [ # A list of messages that carry the error details.  There is a common set of
+          # message types for APIs to use.
+        {
+          "a_key": "", # Properties of the object. Contains field @type with type URL.
+        },
+      ],
+      "message": "A String", # A developer-facing error message, which should be in English. Any
+          # user-facing error message should be localized and sent in the
+          # google.rpc.Status.details field, or localized by the client.
+    },
+    "metadata": { # Service-specific metadata associated with the operation.  It typically
+        # contains progress information and common metadata such as create time.
+        # Some services might not provide such metadata.  Any method that returns a
+        # long-running operation should document the metadata type, if any.
+      "a_key": "", # Properties of the object. Contains field @type with type URL.
+    },
   }</pre>
 </div>
 
@@ -258,33 +261,6 @@
     &quot;name&quot;: &quot;A String&quot;, # The server-assigned name, which is only unique within the same service that
         # originally returns it. If you use the default HTTP mapping, the
         # `name` should be a resource name ending with `operations/{unique_id}`.
-    &quot;error&quot;: { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
-        # different programming environments, including REST APIs and RPC APIs. It is
-        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
-        # three pieces of data: error code, error message, and error details.
-        #
-        # You can find out more about this error model and how to work with it in the
-        # [API Design Guide](https://cloud.google.com/apis/design/errors).
-      &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
-          # user-facing error message should be localized and sent in the
-          # google.rpc.Status.details field, or localized by the client.
-      &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
-          # message types for APIs to use.
-        {
-          &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-        },
-      ],
-      &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
-    },
-    &quot;metadata&quot;: { # Service-specific metadata associated with the operation.  It typically
-        # contains progress information and common metadata such as create time.
-        # Some services might not provide such metadata.  Any method that returns a
-        # long-running operation should document the metadata type, if any.
-      &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-    },
-    &quot;done&quot;: True or False, # If the value is `false`, it means the operation is still in progress.
-        # If `true`, the operation is completed, and either `error` or `response` is
-        # available.
     &quot;response&quot;: { # The normal response of the operation in case of success.  If the original
         # method returns no data on success, such as `Delete`, the response is
         # `google.protobuf.Empty`.  If the original method is standard
@@ -295,6 +271,33 @@
         # `TakeSnapshotResponse`.
       &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
     },
+    &quot;done&quot;: True or False, # If the value is `false`, it means the operation is still in progress.
+        # If `true`, the operation is completed, and either `error` or `response` is
+        # available.
+    &quot;error&quot;: { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
+        # different programming environments, including REST APIs and RPC APIs. It is
+        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
+        # three pieces of data: error code, error message, and error details.
+        #
+        # You can find out more about this error model and how to work with it in the
+        # [API Design Guide](https://cloud.google.com/apis/design/errors).
+      &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
+      &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
+          # message types for APIs to use.
+        {
+          &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+        },
+      ],
+      &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
+          # user-facing error message should be localized and sent in the
+          # google.rpc.Status.details field, or localized by the client.
+    },
+    &quot;metadata&quot;: { # Service-specific metadata associated with the operation.  It typically
+        # contains progress information and common metadata such as create time.
+        # Some services might not provide such metadata.  Any method that returns a
+        # long-running operation should document the metadata type, if any.
+      &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+    },
   }</pre>
 </div>
 
@@ -317,77 +320,80 @@
 Returns:
   An object of the form:
 
-    { # A document resource.
-      #
-      # Note: The `projects.agent.knowledgeBases.documents` resource is deprecated;
-      # only use `projects.knowledgeBases.documents`.
-    &quot;knowledgeTypes&quot;: [ # Required. The knowledge type of document content.
-      &quot;A String&quot;,
-    ],
-    &quot;displayName&quot;: &quot;A String&quot;, # Required. The display name of the document. The name must be 1024 bytes or
-        # less; otherwise, the creation request fails.
-    &quot;rawContent&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
-        # EXTRACTIVE_QA and FAQ knowledge types.
-    &quot;enableAutoReload&quot;: True or False, # Optional. If true, we try to automatically reload the document every day
-        # (at a time picked by the system). If false or unspecified, we don&#x27;t try
-        # to automatically reload the document.
+    { # A knowledge document to be used by a KnowledgeBase.
         #
-        # Currently you can only enable automatic reload for documents sourced from
-        # a public url, see `source` field for the source types.
+        # For more information, see the [knowledge base
+        # guide](https://cloud.google.com/dialogflow/docs/how/knowledge-bases).
         #
-        # Reload status can be tracked in `latest_reload_status`. If a reload
-        # fails, we will keep the document unchanged.
-        #
-        # If a reload fails with internal errors, the system will try to reload the
-        # document on the next day.
-        # If a reload fails with non-retriable errors (e.g. PERMISION_DENIED), the
-        # system will not try to reload the document anymore. You need to manually
-        # reload the document successfully by calling `ReloadDocument` and clear the
-        # errors.
-    &quot;contentUri&quot;: &quot;A String&quot;, # The URI where the file content is located.
-        #
-        # For documents stored in Google Cloud Storage, these URIs must have
-        # the form `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
-        #
-        # NOTE: External URLs must correspond to public webpages, i.e., they must
-        # be indexed by Google Search. In particular, URLs for showing documents in
-        # Google Cloud Storage (i.e. the URL in your browser) are not supported.
-        # Instead use the `gs://` format URI described above.
-    &quot;latestReloadStatus&quot;: { # The status of a reload attempt. # Output only. The time and status of the latest reload.
-        # This reload may have been triggered automatically or manually
-        # and may not have succeeded.
-      &quot;status&quot;: { # The `Status` type defines a logical error model that is suitable for # Output only. The status of a reload attempt or the initial load.
-          # different programming environments, including REST APIs and RPC APIs. It is
-          # used by [gRPC](https://github.com/grpc). Each `Status` message contains
-          # three pieces of data: error code, error message, and error details.
+        # Note: The `projects.agent.knowledgeBases.documents` resource is deprecated;
+        # only use `projects.knowledgeBases.documents`.
+      &quot;displayName&quot;: &quot;A String&quot;, # Required. The display name of the document. The name must be 1024 bytes or
+          # less; otherwise, the creation request fails.
+      &quot;enableAutoReload&quot;: True or False, # Optional. If true, we try to automatically reload the document every day
+          # (at a time picked by the system). If false or unspecified, we don&#x27;t try
+          # to automatically reload the document.
           #
-          # You can find out more about this error model and how to work with it in the
-          # [API Design Guide](https://cloud.google.com/apis/design/errors).
-        &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
-            # user-facing error message should be localized and sent in the
-            # google.rpc.Status.details field, or localized by the client.
-        &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
-            # message types for APIs to use.
-          {
-            &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-          },
-        ],
-        &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
+          # Currently you can only enable automatic reload for documents sourced from
+          # a public url, see `source` field for the source types.
+          #
+          # Reload status can be tracked in `latest_reload_status`. If a reload
+          # fails, we will keep the document unchanged.
+          #
+          # If a reload fails with internal errors, the system will try to reload the
+          # document on the next day.
+          # If a reload fails with non-retriable errors (e.g. PERMISION_DENIED), the
+          # system will not try to reload the document anymore. You need to manually
+          # reload the document successfully by calling `ReloadDocument` and clear the
+          # errors.
+      &quot;latestReloadStatus&quot;: { # The status of a reload attempt. # Output only. The time and status of the latest reload.
+          # This reload may have been triggered automatically or manually
+          # and may not have succeeded.
+        &quot;status&quot;: { # The `Status` type defines a logical error model that is suitable for # Output only. The status of a reload attempt or the initial load.
+            # different programming environments, including REST APIs and RPC APIs. It is
+            # used by [gRPC](https://github.com/grpc). Each `Status` message contains
+            # three pieces of data: error code, error message, and error details.
+            #
+            # You can find out more about this error model and how to work with it in the
+            # [API Design Guide](https://cloud.google.com/apis/design/errors).
+          &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
+          &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
+              # message types for APIs to use.
+            {
+              &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+            },
+          ],
+          &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
+              # user-facing error message should be localized and sent in the
+              # google.rpc.Status.details field, or localized by the client.
+        },
+        &quot;time&quot;: &quot;A String&quot;, # Output only. The time of a reload attempt.
+            # This reload may have been triggered automatically or manually and may
+            # not have succeeded.
       },
-      &quot;time&quot;: &quot;A String&quot;, # Output only. The time of a reload attempt.
-          # This reload may have been triggered automatically or manually and may
-          # not have succeeded.
-    },
-    &quot;name&quot;: &quot;A String&quot;, # Optional. The document resource name.
-        # The name must be empty when creating a document.
-        # Format: `projects/&lt;Project ID&gt;/knowledgeBases/&lt;Knowledge Base
-        # ID&gt;/documents/&lt;Document ID&gt;`.
-    &quot;content&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
-        # EXTRACTIVE_QA and FAQ knowledge types.
-        # Note: This field is in the process of being deprecated, please use
-        # raw_content instead.
-    &quot;mimeType&quot;: &quot;A String&quot;, # Required. The MIME type of this document.
-  }</pre>
+      &quot;content&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
+          # EXTRACTIVE_QA and FAQ knowledge types.
+          # Note: This field is in the process of being deprecated, please use
+          # raw_content instead.
+      &quot;knowledgeTypes&quot;: [ # Required. The knowledge type of document content.
+        &quot;A String&quot;,
+      ],
+      &quot;contentUri&quot;: &quot;A String&quot;, # The URI where the file content is located.
+          #
+          # For documents stored in Google Cloud Storage, these URIs must have
+          # the form `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+          #
+          # NOTE: External URLs must correspond to public webpages, i.e., they must
+          # be indexed by Google Search. In particular, URLs for showing documents in
+          # Google Cloud Storage (i.e. the URL in your browser) are not supported.
+          # Instead use the `gs://` format URI described above.
+      &quot;mimeType&quot;: &quot;A String&quot;, # Required. The MIME type of this document.
+      &quot;name&quot;: &quot;A String&quot;, # Optional. The document resource name.
+          # The name must be empty when creating a document.
+          # Format: `projects/&lt;Project ID&gt;/knowledgeBases/&lt;Knowledge Base
+          # ID&gt;/documents/&lt;Document ID&gt;`.
+      &quot;rawContent&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
+          # EXTRACTIVE_QA and FAQ knowledge types.
+    }</pre>
 </div>
 
 <div class="method">
@@ -400,8 +406,8 @@
 Args:
   parent: string, Required. The knowledge base to list all documents for.
 Format: `projects/&lt;Project ID&gt;/knowledgeBases/&lt;Knowledge Base ID&gt;`. (required)
-  pageToken: string, Optional. The next_page_token value returned from a previous list request.
-  pageSize: integer, Optional. The maximum number of items to return in a single page. By
+  pageToken: string, The next_page_token value returned from a previous list request.
+  pageSize: integer, The maximum number of items to return in a single page. By
 default 10 and at most 100.
   x__xgafv: string, V1 error format.
     Allowed values
@@ -412,81 +418,84 @@
   An object of the form:
 
     { # Response message for Documents.ListDocuments.
-    &quot;documents&quot;: [ # The list of documents.
-      { # A document resource.
-          #
-          # Note: The `projects.agent.knowledgeBases.documents` resource is deprecated;
-          # only use `projects.knowledgeBases.documents`.
-        &quot;knowledgeTypes&quot;: [ # Required. The knowledge type of document content.
-          &quot;A String&quot;,
-        ],
-        &quot;displayName&quot;: &quot;A String&quot;, # Required. The display name of the document. The name must be 1024 bytes or
-            # less; otherwise, the creation request fails.
-        &quot;rawContent&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
-            # EXTRACTIVE_QA and FAQ knowledge types.
-        &quot;enableAutoReload&quot;: True or False, # Optional. If true, we try to automatically reload the document every day
-            # (at a time picked by the system). If false or unspecified, we don&#x27;t try
-            # to automatically reload the document.
-            #
-            # Currently you can only enable automatic reload for documents sourced from
-            # a public url, see `source` field for the source types.
-            #
-            # Reload status can be tracked in `latest_reload_status`. If a reload
-            # fails, we will keep the document unchanged.
-            #
-            # If a reload fails with internal errors, the system will try to reload the
-            # document on the next day.
-            # If a reload fails with non-retriable errors (e.g. PERMISION_DENIED), the
-            # system will not try to reload the document anymore. You need to manually
-            # reload the document successfully by calling `ReloadDocument` and clear the
-            # errors.
-        &quot;contentUri&quot;: &quot;A String&quot;, # The URI where the file content is located.
-            #
-            # For documents stored in Google Cloud Storage, these URIs must have
-            # the form `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
-            #
-            # NOTE: External URLs must correspond to public webpages, i.e., they must
-            # be indexed by Google Search. In particular, URLs for showing documents in
-            # Google Cloud Storage (i.e. the URL in your browser) are not supported.
-            # Instead use the `gs://` format URI described above.
-        &quot;latestReloadStatus&quot;: { # The status of a reload attempt. # Output only. The time and status of the latest reload.
-            # This reload may have been triggered automatically or manually
-            # and may not have succeeded.
-          &quot;status&quot;: { # The `Status` type defines a logical error model that is suitable for # Output only. The status of a reload attempt or the initial load.
-              # different programming environments, including REST APIs and RPC APIs. It is
-              # used by [gRPC](https://github.com/grpc). Each `Status` message contains
-              # three pieces of data: error code, error message, and error details.
-              #
-              # You can find out more about this error model and how to work with it in the
-              # [API Design Guide](https://cloud.google.com/apis/design/errors).
-            &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
-                # user-facing error message should be localized and sent in the
-                # google.rpc.Status.details field, or localized by the client.
-            &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
-                # message types for APIs to use.
-              {
-                &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-              },
-            ],
-            &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
-          },
-          &quot;time&quot;: &quot;A String&quot;, # Output only. The time of a reload attempt.
-              # This reload may have been triggered automatically or manually and may
-              # not have succeeded.
-        },
-        &quot;name&quot;: &quot;A String&quot;, # Optional. The document resource name.
-            # The name must be empty when creating a document.
-            # Format: `projects/&lt;Project ID&gt;/knowledgeBases/&lt;Knowledge Base
-            # ID&gt;/documents/&lt;Document ID&gt;`.
-        &quot;content&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
-            # EXTRACTIVE_QA and FAQ knowledge types.
-            # Note: This field is in the process of being deprecated, please use
-            # raw_content instead.
-        &quot;mimeType&quot;: &quot;A String&quot;, # Required. The MIME type of this document.
-      },
-    ],
     &quot;nextPageToken&quot;: &quot;A String&quot;, # Token to retrieve the next page of results, or empty if there are no
         # more results in the list.
+    &quot;documents&quot;: [ # The list of documents.
+      { # A knowledge document to be used by a KnowledgeBase.
+            #
+            # For more information, see the [knowledge base
+            # guide](https://cloud.google.com/dialogflow/docs/how/knowledge-bases).
+            #
+            # Note: The `projects.agent.knowledgeBases.documents` resource is deprecated;
+            # only use `projects.knowledgeBases.documents`.
+          &quot;displayName&quot;: &quot;A String&quot;, # Required. The display name of the document. The name must be 1024 bytes or
+              # less; otherwise, the creation request fails.
+          &quot;enableAutoReload&quot;: True or False, # Optional. If true, we try to automatically reload the document every day
+              # (at a time picked by the system). If false or unspecified, we don&#x27;t try
+              # to automatically reload the document.
+              #
+              # Currently you can only enable automatic reload for documents sourced from
+              # a public url, see `source` field for the source types.
+              #
+              # Reload status can be tracked in `latest_reload_status`. If a reload
+              # fails, we will keep the document unchanged.
+              #
+              # If a reload fails with internal errors, the system will try to reload the
+              # document on the next day.
+              # If a reload fails with non-retriable errors (e.g. PERMISION_DENIED), the
+              # system will not try to reload the document anymore. You need to manually
+              # reload the document successfully by calling `ReloadDocument` and clear the
+              # errors.
+          &quot;latestReloadStatus&quot;: { # The status of a reload attempt. # Output only. The time and status of the latest reload.
+              # This reload may have been triggered automatically or manually
+              # and may not have succeeded.
+            &quot;status&quot;: { # The `Status` type defines a logical error model that is suitable for # Output only. The status of a reload attempt or the initial load.
+                # different programming environments, including REST APIs and RPC APIs. It is
+                # used by [gRPC](https://github.com/grpc). Each `Status` message contains
+                # three pieces of data: error code, error message, and error details.
+                #
+                # You can find out more about this error model and how to work with it in the
+                # [API Design Guide](https://cloud.google.com/apis/design/errors).
+              &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
+              &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
+                  # message types for APIs to use.
+                {
+                  &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+                },
+              ],
+              &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
+                  # user-facing error message should be localized and sent in the
+                  # google.rpc.Status.details field, or localized by the client.
+            },
+            &quot;time&quot;: &quot;A String&quot;, # Output only. The time of a reload attempt.
+                # This reload may have been triggered automatically or manually and may
+                # not have succeeded.
+          },
+          &quot;content&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
+              # EXTRACTIVE_QA and FAQ knowledge types.
+              # Note: This field is in the process of being deprecated, please use
+              # raw_content instead.
+          &quot;knowledgeTypes&quot;: [ # Required. The knowledge type of document content.
+            &quot;A String&quot;,
+          ],
+          &quot;contentUri&quot;: &quot;A String&quot;, # The URI where the file content is located.
+              #
+              # For documents stored in Google Cloud Storage, these URIs must have
+              # the form `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+              #
+              # NOTE: External URLs must correspond to public webpages, i.e., they must
+              # be indexed by Google Search. In particular, URLs for showing documents in
+              # Google Cloud Storage (i.e. the URL in your browser) are not supported.
+              # Instead use the `gs://` format URI described above.
+          &quot;mimeType&quot;: &quot;A String&quot;, # Required. The MIME type of this document.
+          &quot;name&quot;: &quot;A String&quot;, # Optional. The document resource name.
+              # The name must be empty when creating a document.
+              # Format: `projects/&lt;Project ID&gt;/knowledgeBases/&lt;Knowledge Base
+              # ID&gt;/documents/&lt;Document ID&gt;`.
+          &quot;rawContent&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
+              # EXTRACTIVE_QA and FAQ knowledge types.
+        },
+    ],
   }</pre>
 </div>
 
@@ -519,77 +528,80 @@
   body: object, The request body.
     The object takes the form of:
 
-{ # A document resource.
-    # 
-    # Note: The `projects.agent.knowledgeBases.documents` resource is deprecated;
-    # only use `projects.knowledgeBases.documents`.
-  &quot;knowledgeTypes&quot;: [ # Required. The knowledge type of document content.
-    &quot;A String&quot;,
-  ],
-  &quot;displayName&quot;: &quot;A String&quot;, # Required. The display name of the document. The name must be 1024 bytes or
-      # less; otherwise, the creation request fails.
-  &quot;rawContent&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
-      # EXTRACTIVE_QA and FAQ knowledge types.
-  &quot;enableAutoReload&quot;: True or False, # Optional. If true, we try to automatically reload the document every day
-      # (at a time picked by the system). If false or unspecified, we don&#x27;t try
-      # to automatically reload the document.
+{ # A knowledge document to be used by a KnowledgeBase.
       # 
-      # Currently you can only enable automatic reload for documents sourced from
-      # a public url, see `source` field for the source types.
+      # For more information, see the [knowledge base
+      # guide](https://cloud.google.com/dialogflow/docs/how/knowledge-bases).
       # 
-      # Reload status can be tracked in `latest_reload_status`. If a reload
-      # fails, we will keep the document unchanged.
-      # 
-      # If a reload fails with internal errors, the system will try to reload the
-      # document on the next day.
-      # If a reload fails with non-retriable errors (e.g. PERMISION_DENIED), the
-      # system will not try to reload the document anymore. You need to manually
-      # reload the document successfully by calling `ReloadDocument` and clear the
-      # errors.
-  &quot;contentUri&quot;: &quot;A String&quot;, # The URI where the file content is located.
-      # 
-      # For documents stored in Google Cloud Storage, these URIs must have
-      # the form `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
-      # 
-      # NOTE: External URLs must correspond to public webpages, i.e., they must
-      # be indexed by Google Search. In particular, URLs for showing documents in
-      # Google Cloud Storage (i.e. the URL in your browser) are not supported.
-      # Instead use the `gs://` format URI described above.
-  &quot;latestReloadStatus&quot;: { # The status of a reload attempt. # Output only. The time and status of the latest reload.
-      # This reload may have been triggered automatically or manually
-      # and may not have succeeded.
-    &quot;status&quot;: { # The `Status` type defines a logical error model that is suitable for # Output only. The status of a reload attempt or the initial load.
-        # different programming environments, including REST APIs and RPC APIs. It is
-        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
-        # three pieces of data: error code, error message, and error details.
-        #
-        # You can find out more about this error model and how to work with it in the
-        # [API Design Guide](https://cloud.google.com/apis/design/errors).
-      &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
-          # user-facing error message should be localized and sent in the
-          # google.rpc.Status.details field, or localized by the client.
-      &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
-          # message types for APIs to use.
-        {
-          &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-        },
-      ],
-      &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
+      # Note: The `projects.agent.knowledgeBases.documents` resource is deprecated;
+      # only use `projects.knowledgeBases.documents`.
+    &quot;displayName&quot;: &quot;A String&quot;, # Required. The display name of the document. The name must be 1024 bytes or
+        # less; otherwise, the creation request fails.
+    &quot;enableAutoReload&quot;: True or False, # Optional. If true, we try to automatically reload the document every day
+        # (at a time picked by the system). If false or unspecified, we don&#x27;t try
+        # to automatically reload the document.
+        # 
+        # Currently you can only enable automatic reload for documents sourced from
+        # a public url, see `source` field for the source types.
+        # 
+        # Reload status can be tracked in `latest_reload_status`. If a reload
+        # fails, we will keep the document unchanged.
+        # 
+        # If a reload fails with internal errors, the system will try to reload the
+        # document on the next day.
+        # If a reload fails with non-retriable errors (e.g. PERMISION_DENIED), the
+        # system will not try to reload the document anymore. You need to manually
+        # reload the document successfully by calling `ReloadDocument` and clear the
+        # errors.
+    &quot;latestReloadStatus&quot;: { # The status of a reload attempt. # Output only. The time and status of the latest reload.
+        # This reload may have been triggered automatically or manually
+        # and may not have succeeded.
+      &quot;status&quot;: { # The `Status` type defines a logical error model that is suitable for # Output only. The status of a reload attempt or the initial load.
+          # different programming environments, including REST APIs and RPC APIs. It is
+          # used by [gRPC](https://github.com/grpc). Each `Status` message contains
+          # three pieces of data: error code, error message, and error details.
+          #
+          # You can find out more about this error model and how to work with it in the
+          # [API Design Guide](https://cloud.google.com/apis/design/errors).
+        &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
+        &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
+            # message types for APIs to use.
+          {
+            &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+          },
+        ],
+        &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
+            # user-facing error message should be localized and sent in the
+            # google.rpc.Status.details field, or localized by the client.
+      },
+      &quot;time&quot;: &quot;A String&quot;, # Output only. The time of a reload attempt.
+          # This reload may have been triggered automatically or manually and may
+          # not have succeeded.
     },
-    &quot;time&quot;: &quot;A String&quot;, # Output only. The time of a reload attempt.
-        # This reload may have been triggered automatically or manually and may
-        # not have succeeded.
-  },
-  &quot;name&quot;: &quot;A String&quot;, # Optional. The document resource name.
-      # The name must be empty when creating a document.
-      # Format: `projects/&lt;Project ID&gt;/knowledgeBases/&lt;Knowledge Base
-      # ID&gt;/documents/&lt;Document ID&gt;`.
-  &quot;content&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
-      # EXTRACTIVE_QA and FAQ knowledge types.
-      # Note: This field is in the process of being deprecated, please use
-      # raw_content instead.
-  &quot;mimeType&quot;: &quot;A String&quot;, # Required. The MIME type of this document.
-}
+    &quot;content&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
+        # EXTRACTIVE_QA and FAQ knowledge types.
+        # Note: This field is in the process of being deprecated, please use
+        # raw_content instead.
+    &quot;knowledgeTypes&quot;: [ # Required. The knowledge type of document content.
+      &quot;A String&quot;,
+    ],
+    &quot;contentUri&quot;: &quot;A String&quot;, # The URI where the file content is located.
+        # 
+        # For documents stored in Google Cloud Storage, these URIs must have
+        # the form `gs://&lt;bucket-name&gt;/&lt;object-name&gt;`.
+        # 
+        # NOTE: External URLs must correspond to public webpages, i.e., they must
+        # be indexed by Google Search. In particular, URLs for showing documents in
+        # Google Cloud Storage (i.e. the URL in your browser) are not supported.
+        # Instead use the `gs://` format URI described above.
+    &quot;mimeType&quot;: &quot;A String&quot;, # Required. The MIME type of this document.
+    &quot;name&quot;: &quot;A String&quot;, # Optional. The document resource name.
+        # The name must be empty when creating a document.
+        # Format: `projects/&lt;Project ID&gt;/knowledgeBases/&lt;Knowledge Base
+        # ID&gt;/documents/&lt;Document ID&gt;`.
+    &quot;rawContent&quot;: &quot;A String&quot;, # The raw content of the document. This field is only permitted for
+        # EXTRACTIVE_QA and FAQ knowledge types.
+  }
 
   updateMask: string, Optional. Not specified means `update all`.
 Currently, only `display_name` can be updated, an InvalidArgument will be
@@ -607,33 +619,6 @@
     &quot;name&quot;: &quot;A String&quot;, # The server-assigned name, which is only unique within the same service that
         # originally returns it. If you use the default HTTP mapping, the
         # `name` should be a resource name ending with `operations/{unique_id}`.
-    &quot;error&quot;: { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
-        # different programming environments, including REST APIs and RPC APIs. It is
-        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
-        # three pieces of data: error code, error message, and error details.
-        #
-        # You can find out more about this error model and how to work with it in the
-        # [API Design Guide](https://cloud.google.com/apis/design/errors).
-      &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
-          # user-facing error message should be localized and sent in the
-          # google.rpc.Status.details field, or localized by the client.
-      &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
-          # message types for APIs to use.
-        {
-          &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-        },
-      ],
-      &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
-    },
-    &quot;metadata&quot;: { # Service-specific metadata associated with the operation.  It typically
-        # contains progress information and common metadata such as create time.
-        # Some services might not provide such metadata.  Any method that returns a
-        # long-running operation should document the metadata type, if any.
-      &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-    },
-    &quot;done&quot;: True or False, # If the value is `false`, it means the operation is still in progress.
-        # If `true`, the operation is completed, and either `error` or `response` is
-        # available.
     &quot;response&quot;: { # The normal response of the operation in case of success.  If the original
         # method returns no data on success, such as `Delete`, the response is
         # `google.protobuf.Empty`.  If the original method is standard
@@ -644,6 +629,33 @@
         # `TakeSnapshotResponse`.
       &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
     },
+    &quot;done&quot;: True or False, # If the value is `false`, it means the operation is still in progress.
+        # If `true`, the operation is completed, and either `error` or `response` is
+        # available.
+    &quot;error&quot;: { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
+        # different programming environments, including REST APIs and RPC APIs. It is
+        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
+        # three pieces of data: error code, error message, and error details.
+        #
+        # You can find out more about this error model and how to work with it in the
+        # [API Design Guide](https://cloud.google.com/apis/design/errors).
+      &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
+      &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
+          # message types for APIs to use.
+        {
+          &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+        },
+      ],
+      &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
+          # user-facing error message should be localized and sent in the
+          # google.rpc.Status.details field, or localized by the client.
+    },
+    &quot;metadata&quot;: { # Service-specific metadata associated with the operation.  It typically
+        # contains progress information and common metadata such as create time.
+        # Some services might not provide such metadata.  Any method that returns a
+        # long-running operation should document the metadata type, if any.
+      &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+    },
   }</pre>
 </div>
 
@@ -687,33 +699,6 @@
     &quot;name&quot;: &quot;A String&quot;, # The server-assigned name, which is only unique within the same service that
         # originally returns it. If you use the default HTTP mapping, the
         # `name` should be a resource name ending with `operations/{unique_id}`.
-    &quot;error&quot;: { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
-        # different programming environments, including REST APIs and RPC APIs. It is
-        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
-        # three pieces of data: error code, error message, and error details.
-        #
-        # You can find out more about this error model and how to work with it in the
-        # [API Design Guide](https://cloud.google.com/apis/design/errors).
-      &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
-          # user-facing error message should be localized and sent in the
-          # google.rpc.Status.details field, or localized by the client.
-      &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
-          # message types for APIs to use.
-        {
-          &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-        },
-      ],
-      &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
-    },
-    &quot;metadata&quot;: { # Service-specific metadata associated with the operation.  It typically
-        # contains progress information and common metadata such as create time.
-        # Some services might not provide such metadata.  Any method that returns a
-        # long-running operation should document the metadata type, if any.
-      &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
-    },
-    &quot;done&quot;: True or False, # If the value is `false`, it means the operation is still in progress.
-        # If `true`, the operation is completed, and either `error` or `response` is
-        # available.
     &quot;response&quot;: { # The normal response of the operation in case of success.  If the original
         # method returns no data on success, such as `Delete`, the response is
         # `google.protobuf.Empty`.  If the original method is standard
@@ -724,6 +709,33 @@
         # `TakeSnapshotResponse`.
       &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
     },
+    &quot;done&quot;: True or False, # If the value is `false`, it means the operation is still in progress.
+        # If `true`, the operation is completed, and either `error` or `response` is
+        # available.
+    &quot;error&quot;: { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
+        # different programming environments, including REST APIs and RPC APIs. It is
+        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
+        # three pieces of data: error code, error message, and error details.
+        #
+        # You can find out more about this error model and how to work with it in the
+        # [API Design Guide](https://cloud.google.com/apis/design/errors).
+      &quot;code&quot;: 42, # The status code, which should be an enum value of google.rpc.Code.
+      &quot;details&quot;: [ # A list of messages that carry the error details.  There is a common set of
+          # message types for APIs to use.
+        {
+          &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+        },
+      ],
+      &quot;message&quot;: &quot;A String&quot;, # A developer-facing error message, which should be in English. Any
+          # user-facing error message should be localized and sent in the
+          # google.rpc.Status.details field, or localized by the client.
+    },
+    &quot;metadata&quot;: { # Service-specific metadata associated with the operation.  It typically
+        # contains progress information and common metadata such as create time.
+        # Some services might not provide such metadata.  Any method that returns a
+        # long-running operation should document the metadata type, if any.
+      &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
+    },
   }</pre>
 </div>