Type '() => void' is not assignable to type '() => {}'. Type 'void' is not assignable to type '{}' code example

Example: Type 'Promise' is not assignable to type 'void | (() => void)'.

useEffect(() => {
  const genRandomKey = async () => {
    console.log(await ecc.randomKey())
  };

  genRandomKey();
}, []);