JSDoc and Revealing Module Pattern: module functions passed as parameters (type unresolved)

Question

In a revealing module pattern we have functions that are our modules. Let's say we want to pass a function/module as a parameter to another function/module.

let myApp = function ()
{
    let settings = appSettings();
    settings.foo();
    let module1 = appModule1(settings);
}();

/**
 * @namespace Settings
 */
let appSettings = function ()
{
    /**
     * @memberof Settings
     * @returns {Number} Zero.
     */
    function foo ()
    {
        return 0;
    }
    return {
        foo: foo
    };
};

/**
 * @param {Settings}
 */
let appModule1 = function (settings)
{
    settings.foo();
    return {};
};

For @param {Settings} VS Code / IntelliSense says

type Settings = /*unresolved*/ any

How would we document appSettings so the type of the parameter in appModule1 is resolvend correctly?