chore: regens API reference docs (#889)

diff --git a/docs/epy/help.html b/docs/epy/help.html
index 65ae89f..564f75c 100644
--- a/docs/epy/help.html
+++ b/docs/epy/help.html
@@ -246,7 +246,7 @@
 <table border="0" cellpadding="0" cellspacing="0" width="100%%">
   <tr>
     <td align="left" class="footer">
-    Generated by Epydoc 3.0.1 on Fri Jun 14 15:57:27 2019
+    Generated by Epydoc 3.0.1 on Thu Apr 30 17:06:05 2020
     </td>
     <td align="right" class="footer">
       <a target="mainFrame" href="http://epydoc.sourceforge.net"