Function vips_sys::vips_object_get_argument

pub unsafe extern "C" fn vips_object_get_argument(
    object: *mut VipsObject, 
    name: *const c_char, 
    pspec: *mut *mut GParamSpec, 
    argument_class: *mut *mut VipsArgumentClass, 
    argument_instance: *mut *mut VipsArgumentInstance
) -> c_int