tree a306b79a7903fa77b8f73b936907dfee29d4bbb6
parent 4f6ea4cb6c23e2c925805142ffaab25d14720dd5
author Shawn <xiaoliang.tian@gmail.com> 1593484970 +0800
committer GitHub <noreply@github.com> 1593484970 +0800
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follow right design pattern of service center (#655)