Regenerate docs. (#696)

diff --git a/docs/epy/googleapiclient.http.HttpRequestMock-class.html b/docs/epy/googleapiclient.http.HttpRequestMock-class.html
index bfcb8f7..74ffc77 100644
--- a/docs/epy/googleapiclient.http.HttpRequestMock-class.html
+++ b/docs/epy/googleapiclient.http.HttpRequestMock-class.html
@@ -58,7 +58,13 @@
 <!-- ==================== CLASS DESCRIPTION ==================== -->
 <h1 class="epydoc">Class HttpRequestMock</h1><p class="nomargin-top"><span class="codelink"><a href="googleapiclient.http-pysrc.html#HttpRequestMock">source&nbsp;code</a></span></p>
 <center>
-
+<center>  <map id="uml_class_diagram_for_googleap_28" name="uml_class_diagram_for_googleap_28">
+<area shape="rect" id="node1_2" href="googleapiclient.http.HttpRequestMock-class.html#__init__" title="Constructor for HttpRequestMock" alt="" coords="18,38,241,58"/>
+<area shape="rect" id="node1_3" href="googleapiclient.http.HttpRequestMock-class.html#execute" title="Execute the request." alt="" coords="18,58,241,78"/>
+<area shape="rect" id="node1" href="googleapiclient.http.HttpRequestMock-class.html" title="Mock of HttpRequest." alt="" coords="5,5,252,84"/>
+</map>
+  <img src="uml_class_diagram_for_googleap_28.gif" alt='' usemap="#uml_class_diagram_for_googleap_28" ismap="ismap" class="graph-without-title" />
+</center>
 </center>
 <hr />
 <pre class="literalblock">
@@ -273,7 +279,7 @@
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-    Generated by Epydoc 3.0.1 on Mon Jun  5 13:38:40 2017
+    Generated by Epydoc 3.0.1 on Fri Jun 14 13:09:02 2019
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       <a target="mainFrame" href="http://epydoc.sourceforge.net"