[_sonic_yang_ext.py]: Using python mixin to extend sonic_yang class i…#65

Merged

praveen-li merged 2 commits intozhenggen-xu:sonic-cfg-mgmtfrom praveen-li:use_mixin_sonic_yang

Jun 30, 2020

+643-655

Commits on Jun 30, 2020

[_sonic_yang_ext.py]: Using python mixin to extend sonic_yang class into 2 files.
Praveen Chaudhary
committed
[sonic-yang-mgmt]: Resolving LGTM.
Praveen Chaudhary
committed