Tuple4
data class Tuple4<out E1, out E2, out E3, out E4>(val element1: E1, val element2: E2, val element3: E3, val element4: E4) : Serializable
Represents a tuple of 4 values.
There is no meaning attached to values in this class, it can be used for any purpose. Two tuples are equal if all the components are equal.