Regenerate docs. (#696)

diff --git a/docs/epy/googleapiclient.http.MediaIoBaseDownload-class.html b/docs/epy/googleapiclient.http.MediaIoBaseDownload-class.html
index 3bf1a57..42f0038 100644
--- a/docs/epy/googleapiclient.http.MediaIoBaseDownload-class.html
+++ b/docs/epy/googleapiclient.http.MediaIoBaseDownload-class.html
@@ -58,7 +58,13 @@
 <!-- ==================== CLASS DESCRIPTION ==================== -->
 <h1 class="epydoc">Class MediaIoBaseDownload</h1><p class="nomargin-top"><span class="codelink"><a href="googleapiclient.http-pysrc.html#MediaIoBaseDownload">source&nbsp;code</a></span></p>
 <center>
-
+<center>  <map id="uml_class_diagram_for_googleap_32" name="uml_class_diagram_for_googleap_32">
+<area shape="rect" id="node1_2" href="googleapiclient.http.MediaIoBaseDownload-class.html#__init__" title="Constructor." alt="" coords="17,38,396,58"/>
+<area shape="rect" id="node1_3" href="googleapiclient.http.MediaIoBaseDownload-class.html#next_chunk" title="Get the next chunk of the download." alt="" coords="17,58,396,78"/>
+<area shape="rect" id="node1" href="googleapiclient.http.MediaIoBaseDownload-class.html" title="&quot;Download media resources." alt="" coords="5,5,408,84"/>
+</map>
+  <img src="uml_class_diagram_for_googleap_32.gif" alt='' usemap="#uml_class_diagram_for_googleap_32" ismap="ismap" class="graph-without-title" />
+</center>
 </center>
 <hr />
 <pre class="literalblock">
@@ -264,7 +270,7 @@
         request only once.
 
 Returns:
-  (status, done): (MediaDownloadStatus, boolean)
+  (status, done): (MediaDownloadProgress, boolean)
      The value of 'done' will be True when the media has been fully
      downloaded or the total size of the media is unknown.
 
@@ -308,7 +314,7 @@
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   <tr>
     <td align="left" class="footer">
-    Generated by Epydoc 3.0.1 on Wed Jun 14 20:18:20 2017
+    Generated by Epydoc 3.0.1 on Fri Jun 14 13:09:02 2019
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     <td align="right" class="footer">
       <a target="mainFrame" href="http://epydoc.sourceforge.net"