Hi, Is it possible to make a copy of fmt::ArgList for later use. I am trying to move the actually formatting to a background thread. The idea is to push the format string and the ArgList to a queue which will then be poped out by the background thread. From a brief look it seems that the ArgList holds pointers to objects on the stack and it is not valid once the function execution is completed. Is there support for making a deep copy of the ArgList, if not some pointers on how to go about it would be appreciated. Thank You.