Regen all docs. (#700)

* Stop recursing if discovery == {}

* Generate docs with 'make docs'.
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+
+<h1><a href="genomics_v2alpha1.html">Genomics API</a> . <a href="genomics_v2alpha1.pipelines.html">pipelines</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="#run">run(body, x__xgafv=None)</a></code></p>
+<p class="firstline">Runs a pipeline.</p>
+<h3>Method Details</h3>
+<div class="method">
+    <code class="details" id="run">run(body, x__xgafv=None)</code>
+  <pre>Runs a pipeline.
+
+**Note:** Before you can use this method, the Genomics Service Agent
+must have access to your project. This is done automatically when the
+Cloud Genomics API is first enabled, but if you delete this permission,
+or if you enabled the Cloud Genomics API before the v2alpha1 API
+launch, you must disable and re-enable the API to grant the Genomics
+Service Agent the required permissions.
+Authorization requires the following [Google
+IAM](https://cloud.google.com/iam/) permission:
+
+* `genomics.operations.create`
+
+[1]: /genomics/gsa
+
+Args:
+  body: object, The request body. (required)
+    The object takes the form of:
+
+{ # The arguments to the `RunPipeline` method. The requesting user must have
+      # the `iam.serviceAccounts.actAs` permission for the Cloud Genomics service
+      # account or the request will fail.
+    "pipeline": { # Specifies a series of actions to execute, expressed as Docker containers. # 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.
+          "environment": { # The environment to pass into the container. This environment is merged
+              # with any values specified in the `Pipeline` message. These values
+              # overwrite any in the `Pipeline` message.
+              #
+              # 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",
+          },
+          "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",
+          ],
+          "name": "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 hypens
+              # and cannot start with a hyphen.
+          "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",
+          },
+          "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", # 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.
+          "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,
+          },
+          "flags": [ # The set of flags to apply to this action.
+            "A String",
+          ],
+          "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.
+          "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.
+              "readOnly": True or False, # If true, the disk is mounted read-only inside the container.
+              "disk": "A String", # The name of the disk to mount, as specified in the resources section.
+            },
+          ],
+          "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.
+          },
+          "entrypoint": "A String", # If specified, overrides the `ENTRYPOINT` specified in the container.
+        },
+      ],
+      "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",
+        ],
+        "projectId": "A String", # The project ID to allocate resources in.
+        "zones": [ # The list of zones allowed for VM allocation. If set, the `regions` field
+            # must not be set.
+          "A String",
+        ],
+        "virtualMachine": { # Carries information about a Compute Engine VM resource. # The virtual machine specification.
+          "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.
+          "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 on VM labels
+              # imposed by Compute Engine.
+              #
+              # 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",
+          },
+          "machineType": "A String", # The machine type of the virtual machine to create. Must be the short name
+              # of a standard machine type (such as "n1-standard-1") or a custom machine
+              # type (such as "custom-1-4096", where "1" indicates the number of vCPUs and
+              # "4096" indicates the memory in MB). See
+              # [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.
+          "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.
+            "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.
+            "name": "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.
+          },
+          "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.
+          "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 hypens 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.
+            "scopes": [ # List of scopes to be enabled for this service account on the VM, in
+                # addition to the Cloud Genomics API scope.
+              "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.
+          },
+          "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.
+          "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`.
+          "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.
+              "type": "A String", # The accelerator type string (for example, "nvidia-tesla-k80").
+                  #
+                  # Only NVIDIA GPU accelerators are currently supported. If an NVIDIA GPU is
+                  # attached, the required runtime libraries will be made available to all
+                  # containers under `/usr/local/nvidia`. The driver version to install must
+                  # be specified using the NVIDIA driver version parameter on the virtual
+                  # machine specification. Note that attaching a GPU increases the worker VM
+                  # startup time by a few minutes.
+            },
+          ],
+          "enableStackdriverMonitoring": True or False, # Whether Stackdriver monitoring should be enabled on the VM.
+          "preemptible": True or False, # If true, allocate a preemptible VM.
+        },
+      },
+      "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
+          # will be set to DEADLINE_EXCEEDED.
+          #
+          # If unspecified, it will default to 7 days.
+    },
+    "labels": { # User-defined labels to associate with the returned operation. These
+        # labels are not propagated to any Google Cloud Platform resources used by
+        # the operation, and can be modified at any time.
+        # 
+        # To associate labels with resources created while executing the operation,
+        # see the appropriate resource message (for example, `VirtualMachine`).
+      "a_key": "A String",
+    },
+  }
+
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # This resource represents a long-running operation that is the result of a
+      # network API call.
+    "metadata": { # An OperationMetadata or Metadata object. This will always be returned with the Operation.
+      "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": { # An Empty object.
+      "a_key": "", # 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 originally returns it. For example&#58; `operations/CJHU7Oi_ChDrveSpBRjfuL-qzoWAgEw`
+    "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>
+
+</body></html>
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