Is there a command line options for exporting to callgrind?

[ducklin5]

Firstly, thank you for this project! I use verysleepy primarily to get a callgrind.capture file that I can pass to qcachegrind.
The UI process is tedious. I'm trying to automate it in a script file.
Is there a way to enable exporting to a callgrind file without opening the UI.
I tried the -o flag but that exports in .sleepy format.