[#tour-join]
== join

If multiple <<awaitable, awaitables>> work in parallel they can be awaited simultaneously with
<<join, join>>.

[source,cpp]
----
cobalt::promise<int> some_work();
cobalt::promise<double> more_work();

cobalt::main co_main(int argc, char * argv[])
{
    std::tuple<int, double> res = cobalt::join(some_work(), more_work());
    co_return 0;
}
----