code: public static void unwrapResponseFrom(Protocol.Response response, Channel channel)
        throws AlluxioStatusException {
      Status status = ProtoUtils.fromProto(response.getStatus());
      if (status != Status.OK) {
        throw AlluxioStatusException.from(status.withDescription(
            String.format("Channel to %s: %s", channel.remoteAddress(), response.getMessage())));
      }
    }
docs: Unwraps a {@link alluxio.proto.dataserver.Protocol.Response} associated with a channel.
  
  @param response the response
  @param channel the channel that receives this response