There isn't, but you can compute a filepath and filename for the file and store it in a variable.
You can then use export field contents to export the file from the container to the location and filename specified in the variable.
you can then specify the same variable as the attachment in Send Mail in order to then attach the exported file.
The temporary items folder is a convenient location for such an export.
Thanks for the reply. I knew about that option. In fact I use it in a different script but I was really hoping for a better one. I really appreciate the response though, now I know to just continue with my current method.