<R1 extends Comparable<? super R1>>ComparableSingle<R1>
map(Function<? super T1,? extends R1> mappingFunction)
ComparableSingle
static <T1 extends Comparable<? super T1>>ComparableSingle<T1>
of(T1 t1)
ComparableTuple
int
compareTo(ComparableSingle<T1> o)