inline ActorHandle eval_opts(spawn_options opts, ActorHandle res) {
if (has_monitor_flag(opts))
monitor(res->address());
if (has_link_flag(opts))
link_to(res->address());
return res;
}
constexpr bool is_unbound(spawn_options opts) {
return !has_monitor_flag(opts) && !has_link_flag(opts);
}
