For what is im-launch in autostart? (/usr/bin/ibus-daemon)

Hi!

I upgraded UM.

I found in autostart this entry:

sh -c 'if ! [ -e "/usr/bin/ibus-daemon" ] && [ "x$XDG_SESSION_TYPE" = "xwayland" ] ; then exec env IM_CONFIG_CHECK_ENV=1 im-launch true; fi'

What is that?

Hi !
man im-launch