Regen all docs. (#700)

* Stop recursing if discovery == {}

* Generate docs with 'make docs'.
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+
+<h1><a href="script_v1.html">Apps Script API</a> . <a href="script_v1.projects.html">projects</a> . <a href="script_v1.projects.versions.html">versions</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="#create">create(scriptId, body, x__xgafv=None)</a></code></p>
+<p class="firstline">Creates a new immutable version using the current code, with a unique</p>
+<p class="toc_element">
+  <code><a href="#get">get(scriptId, versionNumber, x__xgafv=None)</a></code></p>
+<p class="firstline">Gets a version of a script project.</p>
+<p class="toc_element">
+  <code><a href="#list">list(scriptId, pageSize=None, pageToken=None, x__xgafv=None)</a></code></p>
+<p class="firstline">List the versions of a script project.</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(scriptId, body, x__xgafv=None)</code>
+  <pre>Creates a new immutable version using the current code, with a unique
+version number.
+
+Args:
+  scriptId: string, The script project's Drive ID. (required)
+  body: object, The request body. (required)
+    The object takes the form of:
+
+{ # A resource representing a script project version. A version is a "snapshot"
+      # of a script project and is similar to a read-only branched release. When
+      # creating deployments, the version to use must be specified.
+    "versionNumber": 42, # The incremental ID that is created by Apps Script when a version is
+        # created. This is system assigned number and is immutable once created.
+    "description": "A String", # The description for this version.
+    "scriptId": "A String", # The script project's Drive ID.
+    "createTime": "A String", # When the version was created.
+  }
+
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # A resource representing a script project version. A version is a "snapshot"
+        # of a script project and is similar to a read-only branched release. When
+        # creating deployments, the version to use must be specified.
+      "versionNumber": 42, # The incremental ID that is created by Apps Script when a version is
+          # created. This is system assigned number and is immutable once created.
+      "description": "A String", # The description for this version.
+      "scriptId": "A String", # The script project's Drive ID.
+      "createTime": "A String", # When the version was created.
+    }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="get">get(scriptId, versionNumber, x__xgafv=None)</code>
+  <pre>Gets a version of a script project.
+
+Args:
+  scriptId: string, The script project's Drive ID. (required)
+  versionNumber: integer, The version number. (required)
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # A resource representing a script project version. A version is a "snapshot"
+        # of a script project and is similar to a read-only branched release. When
+        # creating deployments, the version to use must be specified.
+      "versionNumber": 42, # The incremental ID that is created by Apps Script when a version is
+          # created. This is system assigned number and is immutable once created.
+      "description": "A String", # The description for this version.
+      "scriptId": "A String", # The script project's Drive ID.
+      "createTime": "A String", # When the version was created.
+    }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="list">list(scriptId, pageSize=None, pageToken=None, x__xgafv=None)</code>
+  <pre>List the versions of a script project.
+
+Args:
+  scriptId: string, The script project's Drive ID. (required)
+  pageSize: integer, The maximum number of versions on each returned page. Defaults to 50.
+  pageToken: string, The token for continuing a previous list request on the next page. This
+should be set to the value of `nextPageToken` from a previous response.
+  x__xgafv: string, V1 error format.
+    Allowed values
+      1 - v1 error format
+      2 - v2 error format
+
+Returns:
+  An object of the form:
+
+    { # Response with the list of the versions for the specified script project.
+    "nextPageToken": "A String", # The token use to fetch the next page of records. if not exist in the
+        # response, that means no more versions to list.
+    "versions": [ # The list of versions.
+      { # A resource representing a script project version. A version is a "snapshot"
+            # of a script project and is similar to a read-only branched release. When
+            # creating deployments, the version to use must be specified.
+          "versionNumber": 42, # The incremental ID that is created by Apps Script when a version is
+              # created. This is system assigned number and is immutable once created.
+          "description": "A String", # The description for this version.
+          "scriptId": "A String", # The script project's Drive ID.
+          "createTime": "A String", # When the version was created.
+        },
+    ],
+  }</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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