From fc5ec5807ef5835e094fb52e2f073b3f5beeac1f Mon Sep 17 00:00:00 2001
From: Bruno Oliveira <nicoddemus@gmail.com>
Date: Mon, 11 Dec 2017 17:40:35 -0200
Subject: [PATCH] Add changelog for 3018

---
 changelog/3018.trivial | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog/3018.trivial

diff --git a/changelog/3018.trivial b/changelog/3018.trivial
new file mode 100644
index 000000000..8b4b4176b
--- /dev/null
+++ b/changelog/3018.trivial
@@ -0,0 +1 @@
+Clean up code by replacing imports and references of `_ast` to `ast`.