I am working on migration from Python code generated by protoc with --python_out to proto-plus, and found out that ListValue is not nullable in proto-plus.
With the original code generated by protoc, ListValue is nullable (since it is a message) and our code assumes that.
In order to migrate to proto-plus we will need some extra work to check if our code works as intended with non-nullable ListValue.
I think this difference is incompatible with the original protoc-generated code.
Should not ListValue be nullable?