mpv --script-opts=stats-bindlist=yes,stats-term_width_limit=666

[mrfragger]

mpv --script-opts=stats-bindlist=yes,stats-term_width_limit=666 | aha --black -w > keybindings.html

mpv 0.39

took me quite some time to figure this one out

mpv --script-opts=stats-bindlist=yes,stats-term_cap=no | aha --black -w > keybindings.html

stats-term_cap=no doesn't work...must've at some point got overridden by term_width_limit although it's not mentioned in the docs. So updating docs might help others.