docs: update generated docs (#981)

diff --git a/docs/dyn/lifesciences_v2beta.projects.locations.pipelines.html b/docs/dyn/lifesciences_v2beta.projects.locations.pipelines.html
index dbf69f2..700de79 100644
--- a/docs/dyn/lifesciences_v2beta.projects.locations.pipelines.html
+++ b/docs/dyn/lifesciences_v2beta.projects.locations.pipelines.html
@@ -106,6 +106,145 @@
       # the `iam.serviceAccounts.actAs` permission for the Cloud Life Sciences
       # service account or the request will fail.
     "pipeline": { # Specifies a series of actions to execute, expressed as Docker containers. # Required. The description of the pipeline to run.
+      "environment": { # The environment to pass into every action. Each action can also specify
+          # additional environment variables but cannot delete an entry from this map
+          # (though they can overwrite it with a different value).
+        "a_key": "A String",
+      },
+      "actions": [ # The list of actions to execute, in the order they are specified.
+        { # Specifies a single action that runs a Docker container.
+          "publishExposedPorts": True or False, # Exposes all ports specified by `EXPOSE` statements in the container. To
+              # discover the host side port numbers, consult the `ACTION_STARTED` event
+              # in the operation metadata.
+          "environment": { # The environment to pass into the container. This environment is merged
+              # with values specified in the google.cloud.lifesciences.v2beta.Pipeline
+              # message, overwriting any duplicate values.
+              #
+              # In addition to the values passed here, a few other values are
+              # automatically injected into the environment. These cannot be hidden or
+              # overwritten.
+              #
+              # `GOOGLE_PIPELINE_FAILED` will be set to "1" if the pipeline failed
+              # because an action has exited with a non-zero status (and did not have the
+              # `IGNORE_EXIT_STATUS` flag set). This can be used to determine if additional
+              # debug or logging actions should execute.
+              #
+              # `GOOGLE_LAST_EXIT_STATUS` will be set to the exit status of the last
+              # non-background action that executed. This can be used by workflow engine
+              # authors to determine whether an individual action has succeeded or failed.
+            "a_key": "A String",
+          },
+          "labels": { # Labels to associate with the action. This field is provided to assist
+              # workflow engine authors in identifying actions (for example, to indicate
+              # what sort of action they perform, such as localization or debugging).
+              # They are returned in the operation metadata, but are otherwise ignored.
+            "a_key": "A String",
+          },
+          "containerName": "A String", # An optional name for the container. The container hostname will be set to
+              # this name, making it useful for inter-container communication. The name
+              # must contain only upper and lowercase alphanumeric characters and hyphens
+              # and cannot start with a hyphen.
+          "commands": [ # If specified, overrides the `CMD` specified in the container. If the
+              # container also has an `ENTRYPOINT` the values are used as entrypoint
+              # arguments. Otherwise, they are used as a command and arguments to run
+              # inside the container.
+            "A String",
+          ],
+          "enableFuse": True or False, # Enable access to the FUSE device for this action. Filesystems can then
+              # be mounted into disks shared with other actions. The other actions do
+              # not need the `enable_fuse` flag to access the mounted filesystem.
+              #
+              # This has the effect of causing the container to be executed with
+              # `CAP_SYS_ADMIN` and exposes `/dev/fuse` to the container, so use it only
+              # for containers you trust.
+          "mounts": [ # A list of mounts to make available to the action.
+              #
+              # In addition to the values specified here, every action has a special
+              # virtual disk mounted under `/google` that contains log files and other
+              # operational components.
+              #
+              # <ul>
+              #   <li><code>/google/logs</code> All logs written during the pipeline
+              #   execution.</li>
+              #   <li><code>/google/logs/output</code> The combined standard output and
+              #   standard error of all actions run as part of the pipeline
+              #   execution.</li>
+              #   <li><code>/google/logs/action/*/stdout</code> The complete contents of
+              #   each individual action's standard output.</li>
+              #   <li><code>/google/logs/action/*/stderr</code> The complete contents of
+              #   each individual action's standard error output.</li>
+              # </ul>
+            { # Carries information about a particular disk mount inside a container.
+              "path": "A String", # The path to mount the disk inside the container.
+              "disk": "A String", # The name of the disk to mount, as specified in the resources section.
+              "readOnly": True or False, # If true, the disk is mounted read-only inside the container.
+            },
+          ],
+          "alwaysRun": True or False, # By default, after an action fails, no further actions are run. This flag
+              # indicates that this action must be run even if the pipeline has already
+              # failed. This is useful for actions that copy output files off of the VM
+              # or for debugging. Note that no actions will be run if image prefetching
+              # fails.
+          "credentials": { # Holds encrypted information that is only decrypted and stored in RAM # If the specified image is hosted on a private registry other than Google
+              # Container Registry, the credentials required to pull the image must be
+              # specified here as an encrypted secret.
+              #
+              # The secret must decrypt to a JSON-encoded dictionary containing both
+              # `username` and `password` keys.
+              # by the worker VM when running the pipeline.
+            "cipherText": "A String", # The value of the cipherText response from the `encrypt` method. This field
+                # is intentionally unaudited.
+            "keyName": "A String", # The name of the Cloud KMS key that will be used to decrypt the secret
+                # value. The VM service account must have the required permissions and
+                # authentication scopes to invoke the `decrypt` method on the specified key.
+          },
+          "pidNamespace": "A String", # An optional identifier for a PID namespace to run the action inside.
+              # Multiple actions should use the same string to share a namespace.  If
+              # unspecified, a separate isolated namespace is used.
+          "imageUri": "A String", # Required. The URI to pull the container image from. Note that all images referenced
+              # by actions in the pipeline are pulled before the first action runs. If
+              # multiple actions reference the same image, it is only pulled once,
+              # ensuring that the same image is used for all actions in a single pipeline.
+              #
+              # The image URI can be either a complete host and image specification (e.g.,
+              # quay.io/biocontainers/samtools), a library and image name (e.g.,
+              # google/cloud-sdk) or a bare image name ('bash') to pull from the default
+              # library.  No schema is required in any of these cases.
+              #
+              # If the specified image is not public, the service account specified for
+              # the Virtual Machine must have access to pull the images from GCR, or
+              # appropriate credentials must be specified in the
+              # google.cloud.lifesciences.v2beta.Action.credentials field.
+          "disableStandardErrorCapture": True or False, # A small portion of the container's standard error stream is typically
+              # captured and returned inside the `ContainerStoppedEvent`. Setting this
+              # flag disables this functionality.
+          "entrypoint": "A String", # If specified, overrides the `ENTRYPOINT` specified in the container.
+          "portMappings": { # A map of containers to host port mappings for this container. If the
+              # container already specifies exposed ports, use the
+              # `PUBLISH_EXPOSED_PORTS` flag instead.
+              #
+              # The host port number must be less than 65536. If it is zero, an unused
+              # random port is assigned. To determine the resulting port number, consult
+              # the `ContainerStartedEvent` in the operation metadata.
+            "a_key": 42,
+          },
+          "disableImagePrefetch": True or False, # All container images are typically downloaded before any actions are
+              # executed. This helps prevent typos in URIs or issues like lack of disk
+              # space from wasting large amounts of compute resources.
+              #
+              # If set, this flag prevents the worker from downloading the image until
+              # just before the action is executed.
+          "timeout": "A String", # The maximum amount of time to give the action to complete. If the action
+              # fails to complete before the timeout, it will be terminated and the exit
+              # status will be non-zero. The pipeline will continue or terminate based
+              # on the rules defined by the `ALWAYS_RUN` and `IGNORE_EXIT_STATUS` flags.
+          "ignoreExitStatus": True or False, # Normally, a non-zero exit status causes the pipeline to fail. This flag
+              # allows execution of other actions to continue instead.
+          "runInBackground": True or False, # This flag allows an action to continue running in the background while
+              # executing subsequent actions. This is useful to provide services to
+              # other actions (or to provide debugging support tools like SSH servers).
+        },
+      ],
       "timeout": "A String", # The maximum amount of time to give the pipeline to complete.  This includes
           # the time spent waiting for a worker to be allocated.  If the pipeline fails
           # to complete before the timeout, it will be cancelled and the error code
@@ -115,106 +254,19 @@
       "resources": { # The system resources for the pipeline run. # The resources required for execution.
           #
           # At least one zone or region must be specified or the pipeline run will fail.
-        "regions": [ # The list of regions allowed for VM allocation. If set, the `zones` field
-            # must not be set.
-          "A String",
-        ],
         "zones": [ # The list of zones allowed for VM allocation. If set, the `regions` field
             # must not be set.
           "A String",
         ],
+        "regions": [ # The list of regions allowed for VM allocation. If set, the `zones` field
+            # must not be set.
+          "A String",
+        ],
         "virtualMachine": { # Carries information about a Compute Engine VM resource. # The virtual machine specification.
-          "disks": [ # The list of disks to create and attach to the VM.
-            { # Carries information about a disk that can be attached to a VM.
-                #
-                # See https://cloud.google.com/compute/docs/disks/performance for more
-                # information about disk type, size, and performance considerations.
-              "type": "A String", # The Compute Engine disk type. If unspecified, `pd-standard` is used.
-              "sourceImage": "A String", # An optional image to put on the disk before attaching it to the VM.
-              "sizeGb": 42, # The size, in GB, of the disk to attach. If the size is not
-                  # specified, a default is chosen to ensure reasonable I/O performance.
-                  #
-                  # If the disk type is specified as `local-ssd`, multiple local drives are
-                  # automatically combined to provide the requested size. Note, however, that
-                  # each physical SSD is 375GB in size, and no more than 8 drives can be
-                  # attached to a single instance.
-              "name": "A String", # A user-supplied name for the disk. Used when mounting the disk into
-                  # actions. The name must contain only upper and lowercase alphanumeric
-                  # characters and hyphens and cannot start with a hyphen.
-            },
-          ],
-          "serviceAccount": { # Carries information about a Google Cloud service account. # The service account to install on the VM. This account does not need
-              # any permissions other than those required by the pipeline.
-            "email": "A String", # Email address of the service account. If not specified, the default
-                # Compute Engine service account for the project will be used.
-            "scopes": [ # List of scopes to be enabled for this service account on the VM, in
-                # addition to the cloud-platform API scope that will be added by default.
-              "A String",
-            ],
-          },
-          "bootImage": "A String", # The host operating system image to use.
-              #
-              # Currently, only Container-Optimized OS images can be used.
-              #
-              # The default value is `projects/cos-cloud/global/images/family/cos-stable`,
-              # which selects the latest stable release of Container-Optimized OS.
-              #
-              # This option is provided to allow testing against the beta release of the
-              # operating system to ensure that the new version does not interact
-              # negatively with production pipelines.
-              #
-              # To test a pipeline against the beta release of Container-Optimized OS,
-              # use the value `projects/cos-cloud/global/images/family/cos-beta`.
-          "network": { # VM networking options. # The VM network configuration.
-            "subnetwork": "A String", # If the specified network is configured for custom subnet creation, the
-                # name of the subnetwork to attach the instance to must be specified here.
-                #
-                # The value is prefixed with `regions/*/subnetworks/` unless it contains a
-                # `/`, in which case it is assumed to be a fully specified subnetwork
-                # resource URL.
-                #
-                # If the `*` character appears in the value, it is replaced with the region
-                # that the virtual machine has been allocated in.
-            "network": "A String", # The network name to attach the VM's network interface to. The value will
-                # be prefixed with `global/networks/` unless it contains a `/`, in which
-                # case it is assumed to be a fully specified network resource URL.
-                #
-                # If unspecified, the global default network is used.
-            "usePrivateAddress": True or False, # If set to true, do not attach a public IP address to the VM. Note that
-                # without a public IP address, additional configuration is required to
-                # allow the VM to access Google services.
-                #
-                # See https://cloud.google.com/vpc/docs/configure-private-google-access
-                # for more information.
-          },
           "bootDiskSizeGb": 42, # The size of the boot disk, in GB. The boot disk must be large
               # enough to accommodate all of the Docker images from each action in the
               # pipeline at the same time. If not specified, a small but reasonable
               # default value is used.
-          "nvidiaDriverVersion": "A String", # The NVIDIA driver version to use when attaching an NVIDIA GPU accelerator.
-              # The version specified here must be compatible with the GPU libraries
-              # contained in the container being executed, and must be one of the drivers
-              # hosted in the `nvidia-drivers-us-public` bucket on Google Cloud Storage.
-          "labels": { # Optional set of labels to apply to the VM and any attached disk resources.
-              # These labels must adhere to the [name and value
-              # restrictions](https://cloud.google.com/compute/docs/labeling-resources) on
-              # VM labels imposed by Compute Engine.
-              #
-              # Labels keys with the prefix 'google-' are reserved for use by Google.
-              #
-              # Labels applied at creation time to the VM. Applied on a best-effort basis
-              # to attached disk resources shortly after VM creation.
-            "a_key": "A String",
-          },
-          "enableStackdriverMonitoring": True or False, # Whether Stackdriver monitoring should be enabled on the VM.
-          "cpuPlatform": "A String", # The CPU platform to request. An instance based on a newer platform can be
-              # allocated, but never one with fewer capabilities. The value of this
-              # parameter must be a valid Compute Engine CPU platform name (such as "Intel
-              # Skylake"). This parameter is only useful for carefully optimized work
-              # loads where the CPU platform has a significant impact.
-              #
-              # For more information about the effect of this parameter, see
-              # https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform.
           "accelerators": [ # The list of accelerators to attach to the VM.
             { # Carries information about an accelerator that can be attached to a VM.
               "count": "A String", # How many accelerators of this type to attach.
@@ -235,147 +287,102 @@
               # [Creating an instance with a custom machine
               # type](https://cloud.google.com/compute/docs/instances/creating-instance-with-custom-machine-type#create)
               # for more specifications on creating a custom machine type.
-          "preemptible": True or False, # If true, allocate a preemptible VM.
-        },
-      },
-      "actions": [ # The list of actions to execute, in the order they are specified.
-        { # Specifies a single action that runs a Docker container.
-          "credentials": { # Holds encrypted information that is only decrypted and stored in RAM # If the specified image is hosted on a private registry other than Google
-              # Container Registry, the credentials required to pull the image must be
-              # specified here as an encrypted secret.
+          "labels": { # Optional set of labels to apply to the VM and any attached disk resources.
+              # These labels must adhere to the [name and value
+              # restrictions](https://cloud.google.com/compute/docs/labeling-resources) on
+              # VM labels imposed by Compute Engine.
               #
-              # The secret must decrypt to a JSON-encoded dictionary containing both
-              # `username` and `password` keys.
-              # by the worker VM when running the pipeline.
-            "keyName": "A String", # The name of the Cloud KMS key that will be used to decrypt the secret
-                # value. The VM service account must have the required permissions and
-                # authentication scopes to invoke the `decrypt` method on the specified key.
-            "cipherText": "A String", # The value of the cipherText response from the `encrypt` method. This field
-                # is intentionally unaudited.
+              # Labels keys with the prefix 'google-' are reserved for use by Google.
+              #
+              # Labels applied at creation time to the VM. Applied on a best-effort basis
+              # to attached disk resources shortly after VM creation.
+            "a_key": "A String",
           },
-          "imageUri": "A String", # Required. The URI to pull the container image from. Note that all images referenced
-              # by actions in the pipeline are pulled before the first action runs. If
-              # multiple actions reference the same image, it is only pulled once,
-              # ensuring that the same image is used for all actions in a single pipeline.
-              #
-              # The image URI can be either a complete host and image specification (e.g.,
-              # quay.io/biocontainers/samtools), a library and image name (e.g.,
-              # google/cloud-sdk) or a bare image name ('bash') to pull from the default
-              # library.  No schema is required in any of these cases.
-              #
-              # If the specified image is not public, the service account specified for
-              # the Virtual Machine must have access to pull the images from GCR, or
-              # appropriate credentials must be specified in the
-              # google.cloud.lifesciences.v2beta.Action.credentials field.
-          "commands": [ # If specified, overrides the `CMD` specified in the container. If the
-              # container also has an `ENTRYPOINT` the values are used as entrypoint
-              # arguments. Otherwise, they are used as a command and arguments to run
-              # inside the container.
+          "dockerCacheImages": [ # The Compute Engine Disk Images to use as a Docker cache. The disks will be
+              # mounted into the Docker folder in a way that the images present in the
+              # cache will not need to be pulled. The digests of the cached images must
+              # match those of the tags used or the latest version will still be pulled.
+              # Only a single image is supported.
             "A String",
           ],
-          "ignoreExitStatus": True or False, # Normally, a non-zero exit status causes the pipeline to fail. This flag
-              # allows execution of other actions to continue instead.
-          "runInBackground": True or False, # This flag allows an action to continue running in the background while
-              # executing subsequent actions. This is useful to provide services to
-              # other actions (or to provide debugging support tools like SSH servers).
-          "enableFuse": True or False, # Enable access to the FUSE device for this action. Filesystems can then
-              # be mounted into disks shared with other actions. The other actions do
-              # not need the `enable_fuse` flag to access the mounted filesystem.
+          "enableStackdriverMonitoring": True or False, # Whether Stackdriver monitoring should be enabled on the VM.
+          "bootImage": "A String", # The host operating system image to use.
               #
-              # This has the effect of causing the container to be executed with
-              # `CAP_SYS_ADMIN` and exposes `/dev/fuse` to the container, so use it only
-              # for containers you trust.
-          "labels": { # Labels to associate with the action. This field is provided to assist
-              # workflow engine authors in identifying actions (for example, to indicate
-              # what sort of action they perform, such as localization or debugging).
-              # They are returned in the operation metadata, but are otherwise ignored.
-            "a_key": "A String",
-          },
-          "portMappings": { # A map of containers to host port mappings for this container. If the
-              # container already specifies exposed ports, use the
-              # `PUBLISH_EXPOSED_PORTS` flag instead.
+              # Currently, only Container-Optimized OS images can be used.
               #
-              # The host port number must be less than 65536. If it is zero, an unused
-              # random port is assigned. To determine the resulting port number, consult
-              # the `ContainerStartedEvent` in the operation metadata.
-            "a_key": 42,
-          },
-          "environment": { # The environment to pass into the container. This environment is merged
-              # with values specified in the google.cloud.lifesciences.v2beta.Pipeline
-              # message, overwriting any duplicate values.
+              # The default value is `projects/cos-cloud/global/images/family/cos-stable`,
+              # which selects the latest stable release of Container-Optimized OS.
               #
-              # In addition to the values passed here, a few other values are
-              # automatically injected into the environment. These cannot be hidden or
-              # overwritten.
+              # This option is provided to allow testing against the beta release of the
+              # operating system to ensure that the new version does not interact
+              # negatively with production pipelines.
               #
-              # `GOOGLE_PIPELINE_FAILED` will be set to "1" if the pipeline failed
-              # because an action has exited with a non-zero status (and did not have the
-              # `IGNORE_EXIT_STATUS` flag set). This can be used to determine if additional
-              # debug or logging actions should execute.
+              # To test a pipeline against the beta release of Container-Optimized OS,
+              # use the value `projects/cos-cloud/global/images/family/cos-beta`.
+          "cpuPlatform": "A String", # The CPU platform to request. An instance based on a newer platform can be
+              # allocated, but never one with fewer capabilities. The value of this
+              # parameter must be a valid Compute Engine CPU platform name (such as "Intel
+              # Skylake"). This parameter is only useful for carefully optimized work
+              # loads where the CPU platform has a significant impact.
               #
-              # `GOOGLE_LAST_EXIT_STATUS` will be set to the exit status of the last
-              # non-background action that executed. This can be used by workflow engine
-              # authors to determine whether an individual action has succeeded or failed.
-            "a_key": "A String",
-          },
-          "containerName": "A String", # An optional name for the container. The container hostname will be set to
-              # this name, making it useful for inter-container communication. The name
-              # must contain only upper and lowercase alphanumeric characters and hyphens
-              # and cannot start with a hyphen.
-          "disableImagePrefetch": True or False, # All container images are typically downloaded before any actions are
-              # executed. This helps prevent typos in URIs or issues like lack of disk
-              # space from wasting large amounts of compute resources.
-              #
-              # If set, this flag prevents the worker from downloading the image until
-              # just before the action is executed.
-          "entrypoint": "A String", # If specified, overrides the `ENTRYPOINT` specified in the container.
-          "alwaysRun": True or False, # By default, after an action fails, no further actions are run. This flag
-              # indicates that this action must be run even if the pipeline has already
-              # failed. This is useful for actions that copy output files off of the VM
-              # or for debugging. Note that no actions will be run if image prefetching
-              # fails.
-          "disableStandardErrorCapture": True or False, # A small portion of the container's standard error stream is typically
-              # captured and returned inside the `ContainerStoppedEvent`. Setting this
-              # flag disables this functionality.
-          "pidNamespace": "A String", # An optional identifier for a PID namespace to run the action inside.
-              # Multiple actions should use the same string to share a namespace.  If
-              # unspecified, a separate isolated namespace is used.
-          "mounts": [ # A list of mounts to make available to the action.
-              #
-              # In addition to the values specified here, every action has a special
-              # virtual disk mounted under `/google` that contains log files and other
-              # operational components.
-              #
-              # <ul>
-              #   <li><code>/google/logs</code> All logs written during the pipeline
-              #   execution.</li>
-              #   <li><code>/google/logs/output</code> The combined standard output and
-              #   standard error of all actions run as part of the pipeline
-              #   execution.</li>
-              #   <li><code>/google/logs/action/*/stdout</code> The complete contents of
-              #   each individual action's standard output.</li>
-              #   <li><code>/google/logs/action/*/stderr</code> The complete contents of
-              #   each individual action's standard error output.</li>
-              # </ul>
-            { # Carries information about a particular disk mount inside a container.
-              "disk": "A String", # The name of the disk to mount, as specified in the resources section.
-              "readOnly": True or False, # If true, the disk is mounted read-only inside the container.
-              "path": "A String", # The path to mount the disk inside the container.
+              # For more information about the effect of this parameter, see
+              # https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform.
+          "preemptible": True or False, # If true, allocate a preemptible VM.
+          "disks": [ # The list of disks to create and attach to the VM.
+            { # Carries information about a disk that can be attached to a VM.
+                #
+                # See https://cloud.google.com/compute/docs/disks/performance for more
+                # information about disk type, size, and performance considerations.
+              "type": "A String", # The Compute Engine disk type. If unspecified, `pd-standard` is used.
+              "sizeGb": 42, # The size, in GB, of the disk to attach. If the size is not
+                  # specified, a default is chosen to ensure reasonable I/O performance.
+                  #
+                  # If the disk type is specified as `local-ssd`, multiple local drives are
+                  # automatically combined to provide the requested size. Note, however, that
+                  # each physical SSD is 375GB in size, and no more than 8 drives can be
+                  # attached to a single instance.
+              "sourceImage": "A String", # An optional image to put on the disk before attaching it to the VM.
+              "name": "A String", # A user-supplied name for the disk. Used when mounting the disk into
+                  # actions. The name must contain only upper and lowercase alphanumeric
+                  # characters and hyphens and cannot start with a hyphen.
             },
           ],
-          "publishExposedPorts": True or False, # Exposes all ports specified by `EXPOSE` statements in the container. To
-              # discover the host side port numbers, consult the `ACTION_STARTED` event
-              # in the operation metadata.
-          "timeout": "A String", # The maximum amount of time to give the action to complete. If the action
-              # fails to complete before the timeout, it will be terminated and the exit
-              # status will be non-zero. The pipeline will continue or terminate based
-              # on the rules defined by the `ALWAYS_RUN` and `IGNORE_EXIT_STATUS` flags.
+          "nvidiaDriverVersion": "A String", # The NVIDIA driver version to use when attaching an NVIDIA GPU accelerator.
+              # The version specified here must be compatible with the GPU libraries
+              # contained in the container being executed, and must be one of the drivers
+              # hosted in the `nvidia-drivers-us-public` bucket on Google Cloud Storage.
+          "serviceAccount": { # Carries information about a Google Cloud service account. # The service account to install on the VM. This account does not need
+              # any permissions other than those required by the pipeline.
+            "scopes": [ # List of scopes to be enabled for this service account on the VM, in
+                # addition to the cloud-platform API scope that will be added by default.
+              "A String",
+            ],
+            "email": "A String", # Email address of the service account. If not specified, the default
+                # Compute Engine service account for the project will be used.
+          },
+          "network": { # VM networking options. # The VM network configuration.
+            "network": "A String", # The network name to attach the VM's network interface to. The value will
+                # be prefixed with `global/networks/` unless it contains a `/`, in which
+                # case it is assumed to be a fully specified network resource URL.
+                #
+                # If unspecified, the global default network is used.
+            "usePrivateAddress": True or False, # If set to true, do not attach a public IP address to the VM. Note that
+                # without a public IP address, additional configuration is required to
+                # allow the VM to access Google services.
+                #
+                # See https://cloud.google.com/vpc/docs/configure-private-google-access
+                # for more information.
+            "subnetwork": "A String", # If the specified network is configured for custom subnet creation, the
+                # name of the subnetwork to attach the instance to must be specified here.
+                #
+                # The value is prefixed with `regions/*/subnetworks/` unless it contains a
+                # `/`, in which case it is assumed to be a fully specified subnetwork
+                # resource URL.
+                #
+                # If the `*` character appears in the value, it is replaced with the region
+                # that the virtual machine has been allocated in.
+          },
         },
-      ],
-      "environment": { # The environment to pass into every action. Each action can also specify
-          # additional environment variables but cannot delete an entry from this map
-          # (though they can overwrite it with a different value).
-        "a_key": "A String",
       },
     },
     "labels": { # User-defined labels to associate with the returned operation. These
@@ -398,13 +405,12 @@
 
     { # This resource represents a long-running operation that is the result of a
       # network API call.
-    "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": { # An Empty object.
       "a_key": "", # Properties of the object. Contains field @type with type URL.
     },
-    "name": "A String", # The server-assigned name for the operation.  This may be passed to the other operation methods to retrieve information about the operation's status.
+    "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
@@ -412,9 +418,6 @@
         #
         # 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.
         {
@@ -422,10 +425,14 @@
         },
       ],
       "code": 42, # The status code, which should be an enum value of google.rpc.Code.
+      "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": { # An Metadata object. This will always be returned with the Operation.
       "a_key": "", # Properties of the object. Contains field @type with type URL.
     },
+    "name": "A String", # The server-assigned name for the operation.  This may be passed to the other operation methods to retrieve information about the operation's status.
   }</pre>
 </div>