Function liq_result_from_palette 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn liq_result_from_palette(
    attr: &liq_attr,
    palette: *const RGBA,
    palette_size: c_uint,
    gamma: f64,
    write_only_output: &mut MaybeUninit<Option<Box<liq_result>>>,
) -> liq_error