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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _construct_operation_id(self, service_name, protorpc_method_name):
 """Return an operation id for a service method. Args: service_name: The name of the service. protorpc_method_name: The ProtoRPC method name. Returns: A string representing the operation id. """


    # camelCase the ProtoRPC method name
    method_name_camel = util.snake_case_to_headless_camel_case(
        protorpc_method_name)

    return '{0}_{1}'.format(service_name, method_name_camel)