private int ReadId()
{
var length = _reader.ReadUint();
var header = new Header();
header.Deserialize(_reader);
var isError = header.Code >= CommandE.ErrorMin && header.Code < CommandE.ErrorMax;
if (isError)
{
var errorMessage = ReadErrorMessage();
_reader.ReadRawBytes((int)length);
throw new ResponseErrorException(header.SyncId, errorMessage);
}
return(header.SyncId);
}