ModuleNotFoundError: No module named 'gogoproto'

[triThirty]

Bug description
When I run from mcp_pb2 import RequestResources under python/istio_api/mcp/v1alpha1 directory, I got ModuleNotFoundError: No module named 'gogoproto'

Affected product area (please put an X in all that apply)

[ ] Configuration Infrastructure
[ ] Docs
[ ] Installation
[ ] Networking
[ ] Performance and Scalability
[ ] Policies and Telemetry
[ ] Security
[ X] Test and Release
[ ] User Experience

Expected behavior
Can import RequestResources correctly.
Steps to reproduce the bug

$ cd python/istio_api/mcp/v1alpha1
$ python
Python 3.8.9 (default, Aug  3 2021, 19:21:54)
[Clang 13.0.0 (clang-1300.0.29.3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from mcp_pb2 import RequestResources
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/I548273/code/test/gRPC/api/python/istio_api/mcp/v1alpha1/mcp_pb2.py", line 15, in <module>
    from gogoproto import gogo_pb2 as gogoproto_dot_gogo__pb2
ModuleNotFoundError: No module named 'gogoproto'

Version (include the output of istioctl version --remote and kubectl version)
It's master branch

[howardjohn]

This code is removed