interface Face {
  setValue(String key, int val)
  setValue(String key, long val)
  setValue(String key, double val)
  setValue(String key, boolean val)
}

interface Keys {
  String ONE = 'one'
  String TWO = 'two'
}

void test(Face face) {
  face.with {
    setValue(Keys.ONE, false)
  }
}