code: def get_ccc_handle_from_uuid(self, uuid):
          
  
          if uuid in self.uuid_cccds:
              return self.uuid_cccds[uuid].handle
          
          char = self.get_characteristic_from_uuid(uuid)
          if char is None:
              return None
  
          ccc = char.get_descriptor_by_uuid(UUID_GATT_CCC)
          if ccc is not None:
              self.uuid_cccds[uuid] = ccc
          return None if ccc is None else ccc.handle
docs: Utility function to retrieve the client characteristic configuration
          descriptor handle for a given characteristic.
          
          Args:
              uuid (str): a string containing the hex-encoded UUID
              
          Returns:
              None if an error occurs, otherwise an integer handle.