'Proxy RPC to a compute manager.  The host in the topic
should be encoded with the target cell name.'

def proxy_rpc_to_manager(self, ctxt, rpc_message, topic, call=False, timeout=None):

    cctxt = self.client.prepare(version='1.2', timeout=timeout)
    return cctxt.call(ctxt, 'proxy_rpc_to_manager', topic=topic, rpc_message=rpc_message, call=call)
