pub unsafe extern "C" fn cairo_pattern_create_rgba(
red: c_double,
green: c_double,
blue: c_double,
alpha: c_double,
) -> *mut cairo_pattern_t
pub unsafe extern "C" fn cairo_pattern_create_rgba(
red: c_double,
green: c_double,
blue: c_double,
alpha: c_double,
) -> *mut cairo_pattern_t