Clean and regen docs (#401)

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+
+<h1><a href="tagmanager_v2.html">Tag Manager API</a> . <a href="tagmanager_v2.accounts.html">accounts</a> . <a href="tagmanager_v2.accounts.containers.html">containers</a> . <a href="tagmanager_v2.accounts.containers.version_headers.html">version_headers</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="#latest">latest(parent)</a></code></p>
+<p class="firstline">Gets the latest container version header</p>
+<p class="toc_element">
+  <code><a href="#list">list(parent, includeDeleted=None, pageToken=None)</a></code></p>
+<p class="firstline">Lists all Container Versions of a GTM Container.</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="latest">latest(parent)</code>
+  <pre>Gets the latest container version header
+
+Args:
+  parent: string, GTM Container's API relative path. Example: accounts/{account_id}/containers/{container_id} (required)
+
+Returns:
+  An object of the form:
+
+    { # Represents a Google Tag Manager Container Version Header.
+    "name": "A String", # Container version display name.
+    "deleted": True or False, # A value of true indicates this container version has been deleted.
+    "numMacros": "A String", # Number of macros in the container version.
+    "numVariables": "A String", # Number of variables in the container version.
+    "numTags": "A String", # Number of tags in the container version.
+    "numRules": "A String", # Number of rules in the container version.
+    "containerVersionId": "A String", # The Container Version ID uniquely identifies the GTM Container Version.
+    "path": "A String", # GTM Container Versions's API relative path.
+    "numTriggers": "A String", # Number of triggers in the container version.
+    "accountId": "A String", # GTM Account ID.
+    "containerId": "A String", # GTM Container ID.
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="list">list(parent, includeDeleted=None, pageToken=None)</code>
+  <pre>Lists all Container Versions of a GTM Container.
+
+Args:
+  parent: string, GTM Container's API relative path. Example: accounts/{account_id}/containers/{container_id} (required)
+  includeDeleted: boolean, Also retrieve deleted (archived) versions when true.
+  pageToken: string, Continuation token for fetching the next page of results.
+
+Returns:
+  An object of the form:
+
+    { # List container versions response.
+    "nextPageToken": "A String", # Continuation token for fetching the next page of results.
+    "containerVersionHeader": [ # All container version headers of a GTM Container.
+      { # Represents a Google Tag Manager Container Version Header.
+        "name": "A String", # Container version display name.
+        "deleted": True or False, # A value of true indicates this container version has been deleted.
+        "numMacros": "A String", # Number of macros in the container version.
+        "numVariables": "A String", # Number of variables in the container version.
+        "numTags": "A String", # Number of tags in the container version.
+        "numRules": "A String", # Number of rules in the container version.
+        "containerVersionId": "A String", # The Container Version ID uniquely identifies the GTM Container Version.
+        "path": "A String", # GTM Container Versions's API relative path.
+        "numTriggers": "A String", # Number of triggers in the container version.
+        "accountId": "A String", # GTM Account ID.
+        "containerId": "A String", # GTM Container ID.
+      },
+    ],
+  }</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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