From 1093d4293273aac0e71fd8da9d2ab3d5e149bb50 Mon Sep 17 00:00:00 2001
From: kk <guyskk@qq.com>
Date: Fri, 15 Feb 2019 03:52:30 +0800
Subject: [PATCH] Doc: Fix example in contextlib asynccontextmanager document
 (GH-8111)