Option to disable hold down the key

[tupo2]

I would be nice if sxhkd provides an option to disable hold down the key.
Example the following sxhkdrc launch mpv multiple time if we hold down the space key:

space
	mpv

I know there is a workaround like:

space
	xdotool keyup 65 ; mpv

But it's not handy to set it for multiple bindings.