chore: regens API reference docs (#889)

diff --git a/docs/epy/toc-googleapiclient.http-module.html b/docs/epy/toc-googleapiclient.http-module.html
index 9f32559..d9bb0ab 100644
--- a/docs/epy/toc-googleapiclient.http-module.html
+++ b/docs/epy/toc-googleapiclient.http-module.html
@@ -40,7 +40,8 @@
      >build_http</a><br />    <a target="mainFrame" href="googleapiclient.http-module.html#set_user_agent"
      >set_user_agent</a><br />    <a target="mainFrame" href="googleapiclient.http-module.html#tunnel_patch"
      >tunnel_patch</a><br />  <h2 class="toc">Variables</h2>
-    <a target="mainFrame" href="googleapiclient.http-module.html#DEFAULT_CHUNK_SIZE"
+    <a target="mainFrame" href="googleapiclient.http-module.html#ConnectionError"
+     >ConnectionError</a><br />    <a target="mainFrame" href="googleapiclient.http-module.html#DEFAULT_CHUNK_SIZE"
      >DEFAULT_CHUNK_SIZE</a><br />    <a target="mainFrame" href="googleapiclient.http-module.html#DEFAULT_HTTP_TIMEOUT_SEC"
      >DEFAULT_HTTP_TIMEOUT_SEC</a><br />    <a target="mainFrame" href="googleapiclient.http-module.html#LOGGER"
      >LOGGER</a><br />    <a target="mainFrame" href="googleapiclient.http-module.html#MAX_BATCH_LIMIT"