Set a static route to default (i.e. delete the matching route)

        Args:
            ip_dest (string): The ip address of the destination in the
                form of A.B.C.D/E
            next_hop (string): The next hop interface or ip address
            **kwargs['next_hop_ip'] (string): The next hop address on
                destination interface
            **kwargs['distance'] (string): Administrative distance for this
                route
            **kwargs['tag'] (string): Route tag
            **kwargs['route_name'] (string): Route name

        Returns:
            True if the operation succeeds, otherwise False.

def default(self, ip_dest, next_hop, **kwargs):
        """Set a static route to default (i.e. delete the matching route)

        Args:
            ip_dest (string): The ip address of the destination in the
                form of A.B.C.D/E
            next_hop (string): The next hop interface or ip address
            **kwargs['next_hop_ip'] (string): The next hop address on
                destination interface
            **kwargs['distance'] (string): Administrative distance for this
                route
            **kwargs['tag'] (string): Route tag
            **kwargs['route_name'] (string): Route name

        Returns:
            True if the operation succeeds, otherwise False.
        """

        # Call _set_route with the default flag set to True
        kwargs.update({'default': True})
        return self._set_route(ip_dest, next_hop, **kwargs)