chore: regens API reference docs (#889)

diff --git a/docs/epy/toc-googleapiclient.model-module.html b/docs/epy/toc-googleapiclient.model-module.html
index fa0a883..7d9d25a 100644
--- a/docs/epy/toc-googleapiclient.model-module.html
+++ b/docs/epy/toc-googleapiclient.model-module.html
@@ -26,7 +26,13 @@
     <a target="mainFrame" href="googleapiclient.model-module.html#makepatch"
      >makepatch</a><br />  <h2 class="toc">Variables</h2>
     <a target="mainFrame" href="googleapiclient.model-module.html#LOGGER"
-     >LOGGER</a><br />    <a target="mainFrame" href="googleapiclient.model-module.html#dump_request_response"
+     >LOGGER</a><br />  <div class="private">
+    <a target="mainFrame" href="googleapiclient.model-module.html#_LIBRARY_VERSION"
+     >_LIBRARY_VERSION</a><br />  </div>
+  <div class="private">
+    <a target="mainFrame" href="googleapiclient.model-module.html#_PY_VERSION"
+     >_PY_VERSION</a><br />  </div>
+    <a target="mainFrame" href="googleapiclient.model-module.html#dump_request_response"
      >dump_request_response</a><br /><hr />
 <span class="options">[<a href="javascript:void(0);" class="privatelink"
     onclick="toggle_private();">hide&nbsp;private</a>]</span>