def _massage_proto_content(raw_proto_content):
    imports_substituted = raw_proto_content.replace(
        b'import "tests/protoc_plugin/protos/',
        b'import "beta_grpc_plugin_test/')
    package_statement_substituted = imports_substituted.replace(
        b'package grpc_protoc_plugin;', b'package beta_grpc_protoc_plugin;')
    return package_statement_substituted