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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 remove(self):
 """ Remove VRF. Maps to the function :py:func:`nipap.backend.Nipap.remove_vrf` in the backend. Please see the documentation for the backend function for information regarding input arguments and return values. """


        xmlrpc = XMLRPCConnection()
        try:
            xmlrpc.connection.remove_vrf(
                {
                    'vrf': { 'id': self.id },
                    'auth': self._auth_opts.options
                })
        except xmlrpclib.Fault as xml_fault:
            raise _fault_to_exception(xml_fault)
        if self.id in _cache['VRF']:
            del(_cache['VRF'][self.id])