GitLab

* tf nn for edgeConv

* Auto stash before merge of "tf_working" and "origin/tf_working"

* clean up

* added test for edge_conv

* fix

* fix

* fix
Co-authored-by: Jinjing Zhou <VoVAllen@users.noreply.github.com>
Co-authored-by: Quan Gan <coin2028@hotmail.com>