module1 : {
  v1: Vector<Int>(),
  v2: Vector<String>(),
  v3: Vector<Int>([1,2,3,4]),
  v4: Vector<String>(["one","two","three"]),
  // the type of vector values can automaticaly deduced
  v5: [1.0, 2.5, 8.6], // Vector<Double>
  v6: ["one","two","three"] // Vector<String>
}