GitLab

* save mem.

* save mem.

* reduce mem

* fix test

* fix lint

* fix test

* fix.

* fix.

* fix.

* fix.

* fix lint.

* fix backend operator.

* fix tensorflow operators.

* fix.

* revert change in mxnet operator.
Co-authored-by: Ubuntu <ubuntu@ip-172-31-19-1.us-west-2.compute.internal>