GitLab

* line graph

* update docstring

* Add test and compile OK

* Add python API

* Fix linty

* Fix

* Fix

* upd

* upd

* Fix

* merge

* Fix

* fix

* upd

* lint

* Fix
Co-authored-by: Ubuntu <ubuntu@ip-172-31-51-214.ec2.internal>
Co-authored-by: Minjie Wang <wmjlyjemaine@gmail.com>