Games : Autofire any key with Autohotkey?

With this script I can autofire E holding the same key.

    $e::
While GetKeyState("e","P")
{
    Random, r, 50, 250
    sleep r
    Send e
}
return

Is there a global way to make any key press respond to this function?

For example: Holding A, will autofire A. Z will autofire Z, etc.

Without manually adding every possible key on the code.