I'm not able to let my IDE know the return type of a module function. Assuming a simple node module like this:

function test() {
    return Promise.resolve("test");
}

module.exports = test;

Now using the module like this:

let test = require("./test");
test().then(text => {
    console.log(text); // prints "test" to console
});

But PhpStorm is always complain about then function:

Unresolved function or method then()

I even tried to add a JSDoc to the test() function like this:

/**
 * test
 * @returns {Promise}
 */
function test() {
    return Promise.resolve("test");
}

Nothing helps. Is there anything I did wrong or another way to get this working?