Function myfunc

(
  {
    myInt,
    myString,
    // We can also set defaults here directly which is nice.
    myString2='def',
  }: {
    myInt: number;
    myString?: string;
    // When using this type of interface, we are still forced to explicitly
    // give the type here again even though // it could in principle be deduced
    // from the default.
    myString2?: string;
  }
)