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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 _get_bridge_name(self):
 """ get Bridge name of a given 'datapath_id' """

        command = ovs_vsctl.VSCtlCommand(
            'find',
            ('Bridge',
             'datapath_id=%s' % dpid_lib.dpid_to_str(self.datapath_id)))
        self.run_command([command])
        if not isinstance(command.result, list) or len(command.result) != 1:
            raise OVSBridgeNotFound(
                datapath_id=dpid_lib.dpid_to_str(self.datapath_id))
        return command.result[0].name