Regen all docs. (#700)

* Stop recursing if discovery == {}

* Generate docs with 'make docs'.
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+
+<h1><a href="servicebroker_v1beta1.html">Service Broker API</a> . <a href="servicebroker_v1beta1.projects.html">projects</a> . <a href="servicebroker_v1beta1.projects.brokers.html">brokers</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="servicebroker_v1beta1.projects.brokers.instances.html">instances()</a></code>
+</p>
+<p class="firstline">Returns the instances Resource.</p>
+
+<p class="toc_element">
+  <code><a href="servicebroker_v1beta1.projects.brokers.v2.html">v2()</a></code>
+</p>
+<p class="firstline">Returns the v2 Resource.</p>
+
+<p class="toc_element">
+  <code><a href="#create">create(parent, body, x__xgafv=None)</a></code></p>
+<p class="firstline">CreateBroker creates a Broker.</p>
+<p class="toc_element">
+  <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
+<p class="firstline">DeleteBroker deletes a Broker.</p>
+<p class="toc_element">
+  <code><a href="#list">list(parent, pageToken=None, x__xgafv=None, pageSize=None)</a></code></p>
+<p class="firstline">ListBrokers lists brokers.</p>
+<p class="toc_element">
+  <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
+<p class="firstline">Retrieves the next page of results.</p>
+<h3>Method Details</h3>
+<div class="method">
+    <code class="details" id="create">create(parent, body, x__xgafv=None)</code>
+  <pre>CreateBroker creates a Broker.
+
+Args:
+  parent: string, The project in which to create broker. (required)
+  body: object, The request body. (required)
+    The object takes the form of:
+
+{ # Broker represents a consumable collection of Service Registry catalogs
+      # exposed as an OSB Broker.
+    "url": "A String", # Output only.
+        # URL of the broker OSB-compliant endpoint, for example:
+        # https://servicebroker.googleapis.com/projects/<project>/brokers/<broker>
+    "createTime": "A String", # Output only.
+        # Timestamp for when the broker was created.
+    "name": "A String", # Name of the broker in the format:
+        # <projects>/<project-id>/brokers/<broker>.
+        # This allows for multiple brokers per project which can be used to
+        # enable having custom brokers per GKE cluster, for example.
+    "title": "A String", # User friendly title of the broker.
+        # Limited to 1024 characters. Requests with longer titles will be rejected.
+  }
+
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # Broker represents a consumable collection of Service Registry catalogs
+        # exposed as an OSB Broker.
+      "url": "A String", # Output only.
+          # URL of the broker OSB-compliant endpoint, for example:
+          # https://servicebroker.googleapis.com/projects/<project>/brokers/<broker>
+      "createTime": "A String", # Output only.
+          # Timestamp for when the broker was created.
+      "name": "A String", # Name of the broker in the format:
+          # <projects>/<project-id>/brokers/<broker>.
+          # This allows for multiple brokers per project which can be used to
+          # enable having custom brokers per GKE cluster, for example.
+      "title": "A String", # User friendly title of the broker.
+          # Limited to 1024 characters. Requests with longer titles will be rejected.
+    }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="delete">delete(name, x__xgafv=None)</code>
+  <pre>DeleteBroker deletes a Broker.
+
+Args:
+  name: string, The broker to delete. (required)
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # A generic empty message that you can re-use to avoid defining duplicated
+      # empty messages in your APIs. A typical example is to use it as the request
+      # or the response type of an API method. For instance:
+      #
+      #     service Foo {
+      #       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
+      #     }
+      #
+      # The JSON representation for `Empty` is empty JSON object `{}`.
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="list">list(parent, pageToken=None, x__xgafv=None, pageSize=None)</code>
+  <pre>ListBrokers lists brokers.
+
+Args:
+  parent: string, Parent must match `projects/[PROJECT_ID]/brokers`. (required)
+  pageToken: string, Specifies a page token to use. Set `pageToken` to a `nextPageToken`
+returned by a previous list request to get the next page of results.
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+  pageSize: integer, Specifies the number of results to return per page. If there are fewer
+elements than the specified number, returns all elements.
+Optional. Acceptable values are 0 to 200, inclusive. (Default: 100)
+
+Returns:
+  An object of the form:
+
+    { # The response for the `ListBrokers()` method.
+    "nextPageToken": "A String", # This token allows you to get the next page of results for list requests.
+        # If the number of results is larger than `pageSize`, use the `nextPageToken`
+        # as a value for the query parameter `pageToken` in the next list request.
+        # Subsequent list requests will have their own `nextPageToken` to continue
+        # paging through the results
+    "brokers": [ # The list of brokers in the container.
+      { # Broker represents a consumable collection of Service Registry catalogs
+            # exposed as an OSB Broker.
+          "url": "A String", # Output only.
+              # URL of the broker OSB-compliant endpoint, for example:
+              # https://servicebroker.googleapis.com/projects/<project>/brokers/<broker>
+          "createTime": "A String", # Output only.
+              # Timestamp for when the broker was created.
+          "name": "A String", # Name of the broker in the format:
+              # <projects>/<project-id>/brokers/<broker>.
+              # This allows for multiple brokers per project which can be used to
+              # enable having custom brokers per GKE cluster, for example.
+          "title": "A String", # User friendly title of the broker.
+              # Limited to 1024 characters. Requests with longer titles will be rejected.
+        },
+    ],
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="list_next">list_next(previous_request, previous_response)</code>
+  <pre>Retrieves the next page of results.
+
+Args:
+  previous_request: The request for the previous page. (required)
+  previous_response: The response from the request for the previous page. (required)
+
+Returns:
+  A request object that you can call 'execute()' on to request the next
+  page. Returns None if there are no more items in the collection.
+    </pre>
+</div>
+
+</body></html>
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