Tuple2MapperImpl extends AbstractTupleMapper<T, Tuple2<T0, T1>> implements TupleMapper<T, Tuple2<T0, T1>> { public Function<T, T0> get0() { return getAndCast(0); } Tuple2MapperImpl(Function<T, T0> m0, Function<T, T1> m1); @Override Tuple2<T0, T1> apply(T t); Function<T, T0> get0(); Function<T, T1> get1();  }
@Test void get0() { assertEquals(m0, instance.get0()); }