pub unsafe extern "C" fn FMOD_ChannelGroup_SetMixLevelsOutput(
channelgroup: *mut FMOD_CHANNELGROUP,
frontleft: f32,
frontright: f32,
center: f32,
lfe: f32,
surroundleft: f32,
surroundright: f32,
backleft: f32,
backright: f32,
) -> FMOD_RESULT