pub unsafe extern "C" fn cairo_user_font_face_get_render_glyph_func(
font_face: *mut cairo_font_face_t,
) -> cairo_user_scaled_font_render_glyph_func_t
pub unsafe extern "C" fn cairo_user_font_face_get_render_glyph_func(
font_face: *mut cairo_font_face_t,
) -> cairo_user_scaled_font_render_glyph_func_t