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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:
 async def init( self, *, advertise_addr: str = None, listen_addr: str = "0.0.0.0:2377", force_new_cluster: bool = False, swarm_spec: Mapping = None ) -> str: """ Initialize a new swarm. Args: ListenAddr: listen address used for inter-manager communication AdvertiseAddr: address advertised to other nodes. ForceNewCluster: Force creation of a new swarm. SwarmSpec: User modifiable swarm configuration. Returns: id of the swarm node """


        data = {
            "AdvertiseAddr": advertise_addr,
            "ListenAddr": listen_addr,
            "ForceNewCluster": force_new_cluster,
            "Spec": swarm_spec,
        }

        response = await self.docker._query_json("swarm/init", method="POST", data=data)

        return response