Regen all docs. (#700)

* Stop recursing if discovery == {}

* Generate docs with 'make docs'.
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+
+<h1><a href="servicebroker_v1alpha1.html">Service Broker API</a> . <a href="servicebroker_v1alpha1.projects.html">projects</a> . <a href="servicebroker_v1alpha1.projects.brokers.html">brokers</a> . <a href="servicebroker_v1alpha1.projects.brokers.instances.html">instances</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="servicebroker_v1alpha1.projects.brokers.instances.service_bindings.html">service_bindings()</a></code>
+</p>
+<p class="firstline">Returns the service_bindings Resource.</p>
+
+<p class="toc_element">
+  <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
+<p class="firstline">Gets the given service instance from the system.</p>
+<h3>Method Details</h3>
+<div class="method">
+    <code class="details" id="get">get(name, x__xgafv=None)</code>
+  <pre>Gets the given service instance from the system.
+This API is an extension and not part of the OSB spec.
+Hence the path is a standard Google API URL.
+
+Args:
+  name: string, The resource name of the instance to return. (required)
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # Message describing inputs to Provision and Update Service instance requests.
+    "space_guid": "A String", # The identifier for the project space within the platform organization.
+        # Required.
+    "previous_values": { # Used only in UpdateServiceInstance request to optionally specify previous
+        # fields.
+      "a_key": "", # Properties of the object.
+    },
+    "plan_id": "A String", # The ID of the plan. See `Service` and `Plan` resources for details.
+        # Maximum length is 64, GUID recommended.
+        # Required.
+    "parameters": { # Configuration options for the service instance.
+        # Parameters is JSON object serialized to string.
+      "a_key": "", # Properties of the object.
+    },
+    "organization_guid": "A String", # The platform GUID for the organization under which the service is to be
+        # provisioned.
+        # Required.
+    "instance_id": "A String", # The id of the service instance. Must be unique within GCP project.
+        # Maximum length is 64, GUID recommended.
+        # Required.
+    "deploymentName": "A String", # Output only.
+        # Name of the Deployment Manager deployment used for provisioning of this
+        # service instance.
+    "context": { # Platform specific contextual information under which the service instance
+        # is to be provisioned. This replaces organization_guid and space_guid.
+        # But can also contain anything.
+        # Currently only used for logging context information.
+      "a_key": "", # Properties of the object.
+    },
+    "service_id": "A String", # The id of the service. Must be a valid identifier of a service
+        # contained in the list from a `ListServices()` call.
+        # Maximum length is 64, GUID recommended.
+        # Required.
+    "resourceName": "A String", # Output only.
+        # The resource name of the instance, e.g.
+        # projects/project_id/brokers/broker_id/service_instances/instance_id
+    "createTime": "A String", # Output only.
+        # Timestamp for when the instance was created.
+  }</pre>
+</div>
+
+</body></html>
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