njs_prototype_function(njs_vm_t *vm, njs_value_t *args, njs_uint_t nargs,
    njs_index_t unused)
{
    njs_set_undefined(&vm->retval);

    return NJS_OK;
}
njs_prototype_function(njs_vm_t *vm, njs_value_t *args, njs_uint_t nargs,
    njs_index_t unused)
{
    njs_set_undefined(&vm->retval);

    return NJS_OK;
}