code: func (pdb *BytesBrokerWatcherRedis) Put(key string, data []byte, opts ...datasync.PutOption) error {
  	if pdb.delegate.closed {
  		return fmt.Errorf("Put(%s) called on a closed connection", key)
  	}
  	pdb.Debugf("Put(%s)", key)
  
  	return pdb.delegate.Put(pdb.addPrefix(key), data, opts...)
  }
docs: // Put calls Put function of BytesConnectionRedis. Prefix will be prepended to the key argument.