docs: docs update (#911)

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

Fixes #<issue_number_goes_here> 🦕
diff --git a/docs/dyn/cloudshell_v1alpha1.users.environments.html b/docs/dyn/cloudshell_v1alpha1.users.environments.html
index 26b37cd..d425a7d 100644
--- a/docs/dyn/cloudshell_v1alpha1.users.environments.html
+++ b/docs/dyn/cloudshell_v1alpha1.users.environments.html
@@ -107,10 +107,10 @@
     The object takes the form of:
 
 { # Request message for AuthorizeEnvironment.
-    "expireTime": "A String", # The time when the credentials expire. If not set, defaults to one hour from
+    &quot;expireTime&quot;: &quot;A String&quot;, # The time when the credentials expire. If not set, defaults to one hour from
         # when the server received the request.
-    "idToken": "A String", # The OAuth ID token that should be sent to the environment.
-    "accessToken": "A String", # The OAuth access token that should be sent to the environment.
+    &quot;accessToken&quot;: &quot;A String&quot;, # The OAuth access token that should be sent to the environment.
+    &quot;idToken&quot;: &quot;A String&quot;, # The OAuth ID token that should be sent to the environment.
   }
 
   x__xgafv: string, V1 error format.
@@ -149,53 +149,53 @@
   An object of the form:
 
     { # A Cloud Shell environment, which is defined as the combination of a Docker
-        # image specifying what is installed on the environment and a home directory
-        # containing the user's data that will remain across sessions. Each user has a
-        # single environment with the ID "default".
-      "name": "A String", # Output only. Full name of this resource, in the format
-          # `users/{owner_email}/environments/{environment_id}`. `{owner_email}` is the
-          # email address of the user to whom this environment belongs, and
-          # `{environment_id}` is the identifier of this environment. For example,
-          # `users/someone@example.com/environments/default`.
-      "webHost": "A String", # Output only. Host to which clients can connect to initiate HTTPS or WSS
-          # connections with the environment.
-      "vmSizeExpireTime": "A String", # Output only. The time when the Environment will expire back to the default
-          # VM size.
-      "dockerImage": "A String", # Required. Full path to the Docker image used to run this environment, e.g.
-          # "gcr.io/dev-con/cloud-devshell:latest".
-      "publicKeys": [ # Output only. Public keys associated with the environment. Clients can
-          # connect to this environment via SSH only if they possess a private key
-          # corresponding to at least one of these public keys. Keys can be added to or
-          # removed from the environment using the CreatePublicKey and DeletePublicKey
-          # methods.
-        { # A public SSH key, corresponding to a private SSH key held by the client.
-          "name": "A String", # Output only. Full name of this resource, in the format
-              # `users/{owner_email}/environments/{environment_id}/publicKeys/{key_id}`.
-              # `{owner_email}` is the email address of the user to whom the key belongs.
-              # `{environment_id}` is the identifier of the environment to which the key
-              # grants access. `{key_id}` is the unique identifier of the key. For example,
-              # `users/someone@example.com/environments/default/publicKeys/myKey`.
-          "key": "A String", # Required. Content of this key.
-          "format": "A String", # Required. Format of this key's content.
-        },
-      ],
-      "state": "A String", # Output only. Current execution state of this environment.
-      "sshHost": "A String", # Output only. Host to which clients can connect to initiate SSH sessions
-          # with the environment.
-      "sshPort": 42, # Output only. Port to which clients can connect to initiate SSH sessions
-          # with the environment.
-      "sshUsername": "A String", # Output only. Username that clients should use when initiating SSH sessions
-          # with the environment.
-      "webPorts": [ # Output only. Ports to which clients can connect to initiate HTTPS or WSS
-          # connections with the environment.
-        42,
-      ],
-      "id": "A String", # Output only. The environment's identifier, unique among the user's
-          # environments.
-      "size": "A String", # Indicates the size of the backing VM running the environment.  If set to
-          # something other than DEFAULT, it will be reverted to the default VM size
-          # after vm_size_expire_time.
-    }</pre>
+      # image specifying what is installed on the environment and a home directory
+      # containing the user&#x27;s data that will remain across sessions. Each user has a
+      # single environment with the ID &quot;default&quot;.
+    &quot;state&quot;: &quot;A String&quot;, # Output only. Current execution state of this environment.
+    &quot;name&quot;: &quot;A String&quot;, # Output only. Full name of this resource, in the format
+        # `users/{owner_email}/environments/{environment_id}`. `{owner_email}` is the
+        # email address of the user to whom this environment belongs, and
+        # `{environment_id}` is the identifier of this environment. For example,
+        # `users/someone@example.com/environments/default`.
+    &quot;vmSizeExpireTime&quot;: &quot;A String&quot;, # Output only. The time when the Environment will expire back to the default
+        # VM size.
+    &quot;id&quot;: &quot;A String&quot;, # Output only. The environment&#x27;s identifier, unique among the user&#x27;s
+        # environments.
+    &quot;size&quot;: &quot;A String&quot;, # Indicates the size of the backing VM running the environment.  If set to
+        # something other than DEFAULT, it will be reverted to the default VM size
+        # after vm_size_expire_time.
+    &quot;webHost&quot;: &quot;A String&quot;, # Output only. Host to which clients can connect to initiate HTTPS or WSS
+        # connections with the environment.
+    &quot;publicKeys&quot;: [ # Output only. Public keys associated with the environment. Clients can
+        # connect to this environment via SSH only if they possess a private key
+        # corresponding to at least one of these public keys. Keys can be added to or
+        # removed from the environment using the CreatePublicKey and DeletePublicKey
+        # methods.
+      { # A public SSH key, corresponding to a private SSH key held by the client.
+        &quot;name&quot;: &quot;A String&quot;, # Output only. Full name of this resource, in the format
+            # `users/{owner_email}/environments/{environment_id}/publicKeys/{key_id}`.
+            # `{owner_email}` is the email address of the user to whom the key belongs.
+            # `{environment_id}` is the identifier of the environment to which the key
+            # grants access. `{key_id}` is the unique identifier of the key. For example,
+            # `users/someone@example.com/environments/default/publicKeys/myKey`.
+        &quot;key&quot;: &quot;A String&quot;, # Required. Content of this key.
+        &quot;format&quot;: &quot;A String&quot;, # Required. Format of this key&#x27;s content.
+      },
+    ],
+    &quot;dockerImage&quot;: &quot;A String&quot;, # Required. Full path to the Docker image used to run this environment, e.g.
+        # &quot;gcr.io/dev-con/cloud-devshell:latest&quot;.
+    &quot;webPorts&quot;: [ # Output only. Ports to which clients can connect to initiate HTTPS or WSS
+        # connections with the environment.
+      42,
+    ],
+    &quot;sshHost&quot;: &quot;A String&quot;, # Output only. Host to which clients can connect to initiate SSH sessions
+        # with the environment.
+    &quot;sshPort&quot;: 42, # Output only. Port to which clients can connect to initiate SSH sessions
+        # with the environment.
+    &quot;sshUsername&quot;: &quot;A String&quot;, # Output only. Username that clients should use when initiating SSH sessions
+        # with the environment.
+  }</pre>
 </div>
 
 <div class="method">
@@ -210,53 +210,53 @@
     The object takes the form of:
 
 { # A Cloud Shell environment, which is defined as the combination of a Docker
-      # image specifying what is installed on the environment and a home directory
-      # containing the user's data that will remain across sessions. Each user has a
-      # single environment with the ID "default".
-    "name": "A String", # Output only. Full name of this resource, in the format
-        # `users/{owner_email}/environments/{environment_id}`. `{owner_email}` is the
-        # email address of the user to whom this environment belongs, and
-        # `{environment_id}` is the identifier of this environment. For example,
-        # `users/someone@example.com/environments/default`.
-    "webHost": "A String", # Output only. Host to which clients can connect to initiate HTTPS or WSS
-        # connections with the environment.
-    "vmSizeExpireTime": "A String", # Output only. The time when the Environment will expire back to the default
-        # VM size.
-    "dockerImage": "A String", # Required. Full path to the Docker image used to run this environment, e.g.
-        # "gcr.io/dev-con/cloud-devshell:latest".
-    "publicKeys": [ # Output only. Public keys associated with the environment. Clients can
-        # connect to this environment via SSH only if they possess a private key
-        # corresponding to at least one of these public keys. Keys can be added to or
-        # removed from the environment using the CreatePublicKey and DeletePublicKey
-        # methods.
-      { # A public SSH key, corresponding to a private SSH key held by the client.
-        "name": "A String", # Output only. Full name of this resource, in the format
-            # `users/{owner_email}/environments/{environment_id}/publicKeys/{key_id}`.
-            # `{owner_email}` is the email address of the user to whom the key belongs.
-            # `{environment_id}` is the identifier of the environment to which the key
-            # grants access. `{key_id}` is the unique identifier of the key. For example,
-            # `users/someone@example.com/environments/default/publicKeys/myKey`.
-        "key": "A String", # Required. Content of this key.
-        "format": "A String", # Required. Format of this key's content.
-      },
-    ],
-    "state": "A String", # Output only. Current execution state of this environment.
-    "sshHost": "A String", # Output only. Host to which clients can connect to initiate SSH sessions
-        # with the environment.
-    "sshPort": 42, # Output only. Port to which clients can connect to initiate SSH sessions
-        # with the environment.
-    "sshUsername": "A String", # Output only. Username that clients should use when initiating SSH sessions
-        # with the environment.
-    "webPorts": [ # Output only. Ports to which clients can connect to initiate HTTPS or WSS
-        # connections with the environment.
-      42,
-    ],
-    "id": "A String", # Output only. The environment's identifier, unique among the user's
-        # environments.
-    "size": "A String", # Indicates the size of the backing VM running the environment.  If set to
-        # something other than DEFAULT, it will be reverted to the default VM size
-        # after vm_size_expire_time.
-  }
+    # image specifying what is installed on the environment and a home directory
+    # containing the user&#x27;s data that will remain across sessions. Each user has a
+    # single environment with the ID &quot;default&quot;.
+  &quot;state&quot;: &quot;A String&quot;, # Output only. Current execution state of this environment.
+  &quot;name&quot;: &quot;A String&quot;, # Output only. Full name of this resource, in the format
+      # `users/{owner_email}/environments/{environment_id}`. `{owner_email}` is the
+      # email address of the user to whom this environment belongs, and
+      # `{environment_id}` is the identifier of this environment. For example,
+      # `users/someone@example.com/environments/default`.
+  &quot;vmSizeExpireTime&quot;: &quot;A String&quot;, # Output only. The time when the Environment will expire back to the default
+      # VM size.
+  &quot;id&quot;: &quot;A String&quot;, # Output only. The environment&#x27;s identifier, unique among the user&#x27;s
+      # environments.
+  &quot;size&quot;: &quot;A String&quot;, # Indicates the size of the backing VM running the environment.  If set to
+      # something other than DEFAULT, it will be reverted to the default VM size
+      # after vm_size_expire_time.
+  &quot;webHost&quot;: &quot;A String&quot;, # Output only. Host to which clients can connect to initiate HTTPS or WSS
+      # connections with the environment.
+  &quot;publicKeys&quot;: [ # Output only. Public keys associated with the environment. Clients can
+      # connect to this environment via SSH only if they possess a private key
+      # corresponding to at least one of these public keys. Keys can be added to or
+      # removed from the environment using the CreatePublicKey and DeletePublicKey
+      # methods.
+    { # A public SSH key, corresponding to a private SSH key held by the client.
+      &quot;name&quot;: &quot;A String&quot;, # Output only. Full name of this resource, in the format
+          # `users/{owner_email}/environments/{environment_id}/publicKeys/{key_id}`.
+          # `{owner_email}` is the email address of the user to whom the key belongs.
+          # `{environment_id}` is the identifier of the environment to which the key
+          # grants access. `{key_id}` is the unique identifier of the key. For example,
+          # `users/someone@example.com/environments/default/publicKeys/myKey`.
+      &quot;key&quot;: &quot;A String&quot;, # Required. Content of this key.
+      &quot;format&quot;: &quot;A String&quot;, # Required. Format of this key&#x27;s content.
+    },
+  ],
+  &quot;dockerImage&quot;: &quot;A String&quot;, # Required. Full path to the Docker image used to run this environment, e.g.
+      # &quot;gcr.io/dev-con/cloud-devshell:latest&quot;.
+  &quot;webPorts&quot;: [ # Output only. Ports to which clients can connect to initiate HTTPS or WSS
+      # connections with the environment.
+    42,
+  ],
+  &quot;sshHost&quot;: &quot;A String&quot;, # Output only. Host to which clients can connect to initiate SSH sessions
+      # with the environment.
+  &quot;sshPort&quot;: 42, # Output only. Port to which clients can connect to initiate SSH sessions
+      # with the environment.
+  &quot;sshUsername&quot;: &quot;A String&quot;, # Output only. Username that clients should use when initiating SSH sessions
+      # with the environment.
+}
 
   updateMask: string, Mask specifying which fields in the environment should be updated.
   x__xgafv: string, V1 error format.
@@ -268,53 +268,53 @@
   An object of the form:
 
     { # A Cloud Shell environment, which is defined as the combination of a Docker
-        # image specifying what is installed on the environment and a home directory
-        # containing the user's data that will remain across sessions. Each user has a
-        # single environment with the ID "default".
-      "name": "A String", # Output only. Full name of this resource, in the format
-          # `users/{owner_email}/environments/{environment_id}`. `{owner_email}` is the
-          # email address of the user to whom this environment belongs, and
-          # `{environment_id}` is the identifier of this environment. For example,
-          # `users/someone@example.com/environments/default`.
-      "webHost": "A String", # Output only. Host to which clients can connect to initiate HTTPS or WSS
-          # connections with the environment.
-      "vmSizeExpireTime": "A String", # Output only. The time when the Environment will expire back to the default
-          # VM size.
-      "dockerImage": "A String", # Required. Full path to the Docker image used to run this environment, e.g.
-          # "gcr.io/dev-con/cloud-devshell:latest".
-      "publicKeys": [ # Output only. Public keys associated with the environment. Clients can
-          # connect to this environment via SSH only if they possess a private key
-          # corresponding to at least one of these public keys. Keys can be added to or
-          # removed from the environment using the CreatePublicKey and DeletePublicKey
-          # methods.
-        { # A public SSH key, corresponding to a private SSH key held by the client.
-          "name": "A String", # Output only. Full name of this resource, in the format
-              # `users/{owner_email}/environments/{environment_id}/publicKeys/{key_id}`.
-              # `{owner_email}` is the email address of the user to whom the key belongs.
-              # `{environment_id}` is the identifier of the environment to which the key
-              # grants access. `{key_id}` is the unique identifier of the key. For example,
-              # `users/someone@example.com/environments/default/publicKeys/myKey`.
-          "key": "A String", # Required. Content of this key.
-          "format": "A String", # Required. Format of this key's content.
-        },
-      ],
-      "state": "A String", # Output only. Current execution state of this environment.
-      "sshHost": "A String", # Output only. Host to which clients can connect to initiate SSH sessions
-          # with the environment.
-      "sshPort": 42, # Output only. Port to which clients can connect to initiate SSH sessions
-          # with the environment.
-      "sshUsername": "A String", # Output only. Username that clients should use when initiating SSH sessions
-          # with the environment.
-      "webPorts": [ # Output only. Ports to which clients can connect to initiate HTTPS or WSS
-          # connections with the environment.
-        42,
-      ],
-      "id": "A String", # Output only. The environment's identifier, unique among the user's
-          # environments.
-      "size": "A String", # Indicates the size of the backing VM running the environment.  If set to
-          # something other than DEFAULT, it will be reverted to the default VM size
-          # after vm_size_expire_time.
-    }</pre>
+      # image specifying what is installed on the environment and a home directory
+      # containing the user&#x27;s data that will remain across sessions. Each user has a
+      # single environment with the ID &quot;default&quot;.
+    &quot;state&quot;: &quot;A String&quot;, # Output only. Current execution state of this environment.
+    &quot;name&quot;: &quot;A String&quot;, # Output only. Full name of this resource, in the format
+        # `users/{owner_email}/environments/{environment_id}`. `{owner_email}` is the
+        # email address of the user to whom this environment belongs, and
+        # `{environment_id}` is the identifier of this environment. For example,
+        # `users/someone@example.com/environments/default`.
+    &quot;vmSizeExpireTime&quot;: &quot;A String&quot;, # Output only. The time when the Environment will expire back to the default
+        # VM size.
+    &quot;id&quot;: &quot;A String&quot;, # Output only. The environment&#x27;s identifier, unique among the user&#x27;s
+        # environments.
+    &quot;size&quot;: &quot;A String&quot;, # Indicates the size of the backing VM running the environment.  If set to
+        # something other than DEFAULT, it will be reverted to the default VM size
+        # after vm_size_expire_time.
+    &quot;webHost&quot;: &quot;A String&quot;, # Output only. Host to which clients can connect to initiate HTTPS or WSS
+        # connections with the environment.
+    &quot;publicKeys&quot;: [ # Output only. Public keys associated with the environment. Clients can
+        # connect to this environment via SSH only if they possess a private key
+        # corresponding to at least one of these public keys. Keys can be added to or
+        # removed from the environment using the CreatePublicKey and DeletePublicKey
+        # methods.
+      { # A public SSH key, corresponding to a private SSH key held by the client.
+        &quot;name&quot;: &quot;A String&quot;, # Output only. Full name of this resource, in the format
+            # `users/{owner_email}/environments/{environment_id}/publicKeys/{key_id}`.
+            # `{owner_email}` is the email address of the user to whom the key belongs.
+            # `{environment_id}` is the identifier of the environment to which the key
+            # grants access. `{key_id}` is the unique identifier of the key. For example,
+            # `users/someone@example.com/environments/default/publicKeys/myKey`.
+        &quot;key&quot;: &quot;A String&quot;, # Required. Content of this key.
+        &quot;format&quot;: &quot;A String&quot;, # Required. Format of this key&#x27;s content.
+      },
+    ],
+    &quot;dockerImage&quot;: &quot;A String&quot;, # Required. Full path to the Docker image used to run this environment, e.g.
+        # &quot;gcr.io/dev-con/cloud-devshell:latest&quot;.
+    &quot;webPorts&quot;: [ # Output only. Ports to which clients can connect to initiate HTTPS or WSS
+        # connections with the environment.
+      42,
+    ],
+    &quot;sshHost&quot;: &quot;A String&quot;, # Output only. Host to which clients can connect to initiate SSH sessions
+        # with the environment.
+    &quot;sshPort&quot;: 42, # Output only. Port to which clients can connect to initiate SSH sessions
+        # with the environment.
+    &quot;sshUsername&quot;: &quot;A String&quot;, # Output only. Username that clients should use when initiating SSH sessions
+        # with the environment.
+  }</pre>
 </div>
 
 <div class="method">
@@ -334,10 +334,22 @@
     The object takes the form of:
 
 { # Request message for StartEnvironment.
-    "accessToken": "A String", # The initial access token passed to the environment. If this is present and
+    &quot;accessToken&quot;: &quot;A String&quot;, # The initial access token passed to the environment. If this is present and
         # valid, the environment will be pre-authenticated with gcloud so that the
         # user can run gcloud commands in Cloud Shell without having to log in. This
         # code can be updated later by calling AuthorizeEnvironment.
+    &quot;publicKeys&quot;: [ # Public keys that should be added to the environment before it is started.
+      { # A public SSH key, corresponding to a private SSH key held by the client.
+        &quot;name&quot;: &quot;A String&quot;, # Output only. Full name of this resource, in the format
+            # `users/{owner_email}/environments/{environment_id}/publicKeys/{key_id}`.
+            # `{owner_email}` is the email address of the user to whom the key belongs.
+            # `{environment_id}` is the identifier of the environment to which the key
+            # grants access. `{key_id}` is the unique identifier of the key. For example,
+            # `users/someone@example.com/environments/default/publicKeys/myKey`.
+        &quot;key&quot;: &quot;A String&quot;, # Required. Content of this key.
+        &quot;format&quot;: &quot;A String&quot;, # Required. Format of this key&#x27;s content.
+      },
+    ],
   }
 
   x__xgafv: string, V1 error format.
@@ -350,16 +362,34 @@
 
     { # This resource represents a long-running operation that is the result of a
       # network API call.
-    "metadata": { # Service-specific metadata associated with the operation.  It typically
+    &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;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;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.
-      "a_key": "", # Properties of the object. Contains field @type with type URL.
+      &quot;a_key&quot;: &quot;&quot;, # 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.
+    &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.
-    "response": { # The normal response of the operation in case of success.  If the original
+    &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
         # `Get`/`Create`/`Update`, the response should be the resource.  For other
@@ -367,29 +397,11 @@
         # is the original method name.  For example, if the original method name
         # is `TakeSnapshot()`, the inferred response type is
         # `TakeSnapshotResponse`.
-      "a_key": "", # Properties of the object. Contains field @type with type URL.
+      &quot;a_key&quot;: &quot;&quot;, # Properties of the object. Contains field @type with type URL.
     },
-    "name": "A String", # The server-assigned name, which is only unique within the same service that
+    &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}`.
-    "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.
-      "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.
-        },
-      ],
-    },
   }</pre>
 </div>