/**
 * @param {String} [arg1="defaultTest"] Foo. Default is `"defaultTest"`
 * @param {number} [arg2=123] The width of the rectangle. Default is `123`
 * @param {number} [arg3=123] Default is `123`
 * @param {number} [arg4=Foo.bar.baz] Default is `Foo.bar.baz`
 * @param {number | string} [arg5=123] Something. Default is `123`
 */
