Return variable name

def get_var_type(self, name):
        """
        Return variable name
        """

        method = "get_var_type"

        A = None
        metadata = {method: name}

        send_array(self.socket, A, metadata)
        A, metadata = recv_array(
            self.socket, poll=self.poll, poll_timeout=self.poll_timeout,
            flags=self.zmq_flags)

        return metadata[method]