docs: async def get_specific_port_mapping(self, external_port: int, protocol: str) -> Dict:
          """
          :param external_port: (int) external port to listen on
          :param protocol:      (str) 'UDP' | 'TCP'
          :return: (int) <internal port>, (str) <lan ip>, (bool) <enabled>, (str) <description>, (int) <lease time>
          """
  
          try:
              result = await self.gateway.commands.GetSpecificPortMappingEntry(
                  NewRemoteHost='', NewExternalPort=external_port, NewProtocol=protocol
              )
              if result and isinstance(self.gateway.commands.GetSpecificPortMappingEntry, SOAPCommand):
                  return {k: v for k, v in zip(self.gateway.commands.GetSpecificPortMappingEntry.return_order, result)}
          except UPnPError:
              pass
          return {}