mml-tweak-function-alist

mml-tweak-function-alist is a variable defined in `mml.el'.
Its value is

nil

Documentation:
A list of (NAME . FUNCTION) for tweaking MML parts.
NAME is a string containing the name of the TWEAK parameter in the MML
handle. FUNCTION is a Lisp function which is called with the MML
handle to tweak the part.