pub unsafe extern "C" fn snd_mixer_class_set_private_free(
class_: *mut snd_mixer_class_t,
private_free: Option<unsafe extern "C" fn(arg1: *mut snd_mixer_class_t)>,
) -> c_int
pub unsafe extern "C" fn snd_mixer_class_set_private_free(
class_: *mut snd_mixer_class_t,
private_free: Option<unsafe extern "C" fn(arg1: *mut snd_mixer_class_t)>,
) -> c_int