Function rusty_spine::c::_spAnimationState_applyMixingFrom

#[no_mangle]
pub unsafe extern "C" fn _spAnimationState_applyMixingFrom(
    self_0: *mut spAnimationState,
    to: *mut spTrackEntry,
    skeleton: *mut spSkeleton,
    blend: spMixBlend
) -> c_float