Created by: liym27
The added Input of OP must be dispensable. Fix bug in check_op_desc.py.
This bug is found in PR https://github.com/PaddlePaddle/Paddle/pull/21420
Created by: liym27
The added Input of OP must be dispensable. Fix bug in check_op_desc.py.
This bug is found in PR https://github.com/PaddlePaddle/Paddle/pull/21420