Revert "Try to change API"
Revert "Try to change API"

This reverts commit 36d9e4be34f8a1e1177e50514c557ba99f4c5dbf.

PaddlePaddle/Paddle,reyoung/Paddle,jacquesqiao/Paddle,luotao1/Paddle,jacquesqiao/Paddle,tensor-tang/Paddle,QiJune/Paddle,baidu/Paddle,tensor-tang/Paddle,PaddlePaddle/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,PaddlePaddle/Paddle,reyoung/Paddle,reyoung/Paddle,chengduoZH/Paddle,QiJune/Paddle,jacquesqiao/Paddle,tensor-tang/Paddle,QiJune/Paddle,luotao1/Paddle,QiJune/Paddle,tensor-tang/Paddle,jacquesqiao/Paddle,baidu/Paddle,jacquesqiao/Paddle,luotao1/Paddle,baidu/Paddle,baidu/Paddle,chengduoZH/Paddle,reyoung/Paddle,reyoung/Paddle,chengduoZH/Paddle,QiJune/Paddle,baidu/Paddle,QiJune/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,reyoung/Paddle,luotao1/Paddle,chengduoZH/Paddle,chengduoZH/Paddle,tensor-tang/Paddle,luotao1/Paddle,jacquesqiao/Paddle,PaddlePaddle/Paddle