pub unsafe extern "C" fn FMOD_ChannelGroup_SetMixLevelsInput(
channelgroup: *mut FMOD_CHANNELGROUP,
levels: *mut f32,
numlevels: c_int,
) -> FMOD_RESULTpub unsafe extern "C" fn FMOD_ChannelGroup_SetMixLevelsInput(
channelgroup: *mut FMOD_CHANNELGROUP,
levels: *mut f32,
numlevels: c_int,
) -> FMOD_RESULT