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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 hwvtep_add_rbridgeid(self, **kwargs):
 """ Add a range of rbridge-ids Args: name (str):
 gateway-name vlan (str):
 rbridge-ids range callback (function):
 A function executed upon completion of the method. Returns: Return value of `callback`. Raises: None """

        name = kwargs.pop('name')
        id = kwargs.pop('rb_range')
        ip_args = dict(name=name, rb_add=id)
        method_name = 'overlay_gateway_attach_rbridge_id_rb_add'
        method_class = self._brocade_tunnels
        gw_attr = getattr(method_class, method_name)
        config = gw_attr(**ip_args)
        output = self._callback(config)
        return output