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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 create_statement(self, connection_id):
 """Creates a new statement. :param connection_id: ID of the current connection. :returns: New statement ID. """

        request = requests_pb2.CreateStatementRequest()
        request.connection_id = connection_id

        response_data = self._apply(request)
        response = responses_pb2.CreateStatementResponse()
        response.ParseFromString(response_data)
        return response.statement_id