code: def loadAddressbyPrefix(self, prefix, type, network_id, callback=None, errback=None):
          
          import ns1.ipam
          network = ns1.ipam.Network(self.config, id=network_id).load()
          address = ns1.ipam.Address(self.config, prefix=prefix, type=type, network=network)
          return address.load(callback=callback, errback=errback)
docs: Load an existing address by prefix, type and network into a high level Address object
  
          :param str prefix: CIDR prefix of an existing Address
          :param str type: Type of address assignement (planned, assignment or host)
          :param int network_id: network_id associated with the address