njs_eval_function(njs_vm_t *vm, njs_value_t *args, njs_uint_t nargs,
    njs_index_t unused)
{
    njs_internal_error(vm, "Not implemented");

    return NJS_ERROR;
}
njs_eval_function(njs_vm_t *vm, njs_value_t *args, njs_uint_t nargs,
    njs_index_t unused)
{
    njs_internal_error(vm, "Not implemented");

    return NJS_ERROR;
}