pub unsafe extern "C" fn cairo_surface_map_to_image(
surface: *mut cairo_surface_t,
extents: *const cairo_rectangle_int_t,
) -> *mut cairo_surface_t
pub unsafe extern "C" fn cairo_surface_map_to_image(
surface: *mut cairo_surface_t,
extents: *const cairo_rectangle_int_t,
) -> *mut cairo_surface_t