core/play/src/main/java/play/libs/F.java
public static <A, B> Tuple<A, B> Tuple(A a, B b) {
    return new Tuple<A, B>(a, b);
  }
public static <A, B> Tuple<A, B> Tuple(A a, B b) {
    return new Tuple<A, B>(a, b);
  }
Constructs a tuple of A,B

@param a The a value
@param b The b value
@param <A> a's type
@param <B> b's type
@return The tuple