//// [file.js]
// Error (good)
/** @type {function(): string} */ const a = ()=>0;
// Error (good)
/** @type {function(): string} */ const b = async ()=>0;
// No error (bad)
/** @type {function(): string} */ const c = async ()=>{
    return 0;
};
/** @type {function(function(): string): void} */ const f = (p)=>{};
// Error (good)
f(async ()=>{
    return 0;
});
