Fix Using "isinstance" in Loop, test=develop#28641
Merged
zhhsplendid merged 5 commits intoPaddlePaddle:developfrom Nov 17, 2020
Merged
Fix Using "isinstance" in Loop, test=develop#28641zhhsplendid merged 5 commits intoPaddlePaddle:developfrom
zhhsplendid merged 5 commits intoPaddlePaddle:developfrom