/**
* @typedef {function(string): boolean}
* MyType
*/
/**
* @param {MyType} func The function to call.
* @param {string} arg The argument to call it with.
* @returns {boolean} The return.
*/
function callIt(func, arg) {
return func(arg);
}
main.js:7:12 - error TS2304: Cannot find name 'MyType'.
7 * @param {MyType} func The function to call.
~~~~~~