docs: update generated docs (#1053)

Updates for both discovery docs and epydoc API Documentation

Fixes: #1049
diff --git a/docs/epy/googleapiclient.discovery_cache.base.Cache-class.html b/docs/epy/googleapiclient.discovery_cache.base.Cache-class.html
index fb5ec1b..a604c95 100644
--- a/docs/epy/googleapiclient.discovery_cache.base.Cache-class.html
+++ b/docs/epy/googleapiclient.discovery_cache.base.Cache-class.html
@@ -58,15 +58,41 @@
 </table>
 <!-- ==================== CLASS DESCRIPTION ==================== -->
 <h1 class="epydoc">Class Cache</h1><p class="nomargin-top"><span class="codelink"><a href="googleapiclient.discovery_cache.base-pysrc.html#Cache">source&nbsp;code</a></span></p>
-<center>
-
-</center>
-<hr />
-<pre class="literalblock">
-A base abstract cache class.
-
+<pre class="base-tree">
+object --+
+         |
+        <strong class="uidshort">Cache</strong>
 </pre>
 
+<hr />
+<p>A base abstract cache class.</p>
+
+<!-- ==================== NESTED CLASSES ==================== -->
+<a name="section-NestedClasses"></a>
+<table class="summary" border="1" cellpadding="3"
+       cellspacing="0" width="100%" bgcolor="white">
+<tr bgcolor="#70b0f0" class="table-header">
+  <td colspan="2" class="table-header">
+    <table border="0" cellpadding="0" cellspacing="0" width="100%">
+      <tr valign="top">
+        <td align="left"><span class="table-header">Nested Classes</span></td>
+        <td align="right" valign="top"
+         ><span class="options">[<a href="#section-NestedClasses"
+         class="privatelink" onclick="toggle_private();"
+         >hide private</a>]</span></td>
+      </tr>
+    </table>
+  </td>
+</tr>
+<tr>
+    <td width="15%" align="right" valign="top" class="summary">
+      <span class="summary-type">&nbsp;</span>
+    </td><td class="summary">
+        __metaclass__<br />
+      Metaclass for defining Abstract Base Classes (ABCs).
+    </td>
+  </tr>
+</table>
 <!-- ==================== INSTANCE METHODS ==================== -->
 <a name="section-InstanceMethods"></a>
 <table class="summary" border="1" cellpadding="3"
@@ -162,7 +188,35 @@
     <td width="15%" align="right" valign="top" class="summary">
       <span class="summary-type">&nbsp;</span>
     </td><td class="summary">
-        <a name="__metaclass__"></a><span class="summary-name">__metaclass__</span> = <code title="abc.ABCMeta">abc.ABCMeta</code>
+        <a name="__abstractmethods__"></a><span class="summary-name">__abstractmethods__</span> = <code title="frozenset(['get', 'set'])"><code class="variable-group">frozenset([</code><code class="variable-quote">'</code><code class="variable-string">get</code><code class="variable-quote">'</code><code class="variable-op">, </code><code class="variable-quote">'</code><code class="variable-string">set</code><code class="variable-quote">'</code><code class="variable-group">])</code></code>
+    </td>
+  </tr>
+<tr class="private">
+    <td width="15%" align="right" valign="top" class="summary">
+      <span class="summary-type">&nbsp;</span>
+    </td><td class="summary">
+        <a name="_abc_cache"></a><span class="summary-name">_abc_cache</span> = <code title="&lt;_weakrefset.WeakSet object at 0x7fb69e350450&gt;">&lt;_weakrefset.WeakSet object at 0x7fb69e350450&gt;</code>
+    </td>
+  </tr>
+<tr class="private">
+    <td width="15%" align="right" valign="top" class="summary">
+      <span class="summary-type">&nbsp;</span>
+    </td><td class="summary">
+        <a href="googleapiclient.discovery_cache.base.Cache-class.html#_abc_negative_cache" class="summary-name" onclick="show_private();">_abc_negative_cache</a> = <code title="&lt;_weakrefset.WeakSet object at 0x7fb69e350510&gt;">&lt;_weakrefset.WeakSet object at 0x7fb69e3<code class="variable-ellipsis">...</code></code>
+    </td>
+  </tr>
+<tr class="private">
+    <td width="15%" align="right" valign="top" class="summary">
+      <span class="summary-type">&nbsp;</span>
+    </td><td class="summary">
+        <a name="_abc_negative_cache_version"></a><span class="summary-name">_abc_negative_cache_version</span> = <code title="22">22</code>
+    </td>
+  </tr>
+<tr class="private">
+    <td width="15%" align="right" valign="top" class="summary">
+      <span class="summary-type">&nbsp;</span>
+    </td><td class="summary">
+        <a name="_abc_registry"></a><span class="summary-name">_abc_registry</span> = <code title="&lt;_weakrefset.WeakSet object at 0x7fb69e350490&gt;">&lt;_weakrefset.WeakSet object at 0x7fb69e350490&gt;</code>
     </td>
   </tr>
 </table>
@@ -276,6 +330,43 @@
 </td></tr></table>
 </div>
 <br />
+<!-- ==================== CLASS VARIABLE DETAILS ==================== -->
+<a name="section-ClassVariableDetails"></a>
+<table class="details" border="1" cellpadding="3"
+       cellspacing="0" width="100%" bgcolor="white">
+<tr bgcolor="#70b0f0" class="table-header">
+  <td colspan="2" class="table-header">
+    <table border="0" cellpadding="0" cellspacing="0" width="100%">
+      <tr valign="top">
+        <td align="left"><span class="table-header">Class Variable Details</span></td>
+        <td align="right" valign="top"
+         ><span class="options">[<a href="#section-ClassVariableDetails"
+         class="privatelink" onclick="toggle_private();"
+         >hide private</a>]</span></td>
+      </tr>
+    </table>
+  </td>
+</tr>
+</table>
+<a name="_abc_negative_cache"></a>
+<div class="private">
+<table class="details" border="1" cellpadding="3"
+       cellspacing="0" width="100%" bgcolor="white">
+<tr><td>
+  <h3 class="epydoc">_abc_negative_cache</h3>
+  
+  <dl class="fields">
+  </dl>
+  <dl class="fields">
+    <dt>Value:</dt>
+      <dd><table><tr><td><pre class="variable">
+&lt;_weakrefset.WeakSet object at 0x7fb69e350510&gt;
+</pre></td></tr></table>
+</dd>
+  </dl>
+</td></tr></table>
+</div>
+<br />
 <!-- ==================== NAVIGATION BAR ==================== -->
 <table class="navbar" border="0" width="100%" cellpadding="0"
        bgcolor="#a0c0ff" cellspacing="0">
@@ -302,7 +393,7 @@
 <table border="0" cellpadding="0" cellspacing="0" width="100%%">
   <tr>
     <td align="left" class="footer">
-    Generated by Epydoc 3.0.1 on Thu Apr 30 17:06:05 2020
+    Generated by Epydoc 3.0.1 on Fri Oct  2 20:46:22 2020
     </td>
     <td align="right" class="footer">
       <a target="mainFrame" href="http://epydoc.sourceforge.net"