### Question:
Tuple7MapperImpl extends AbstractTupleMapper<T, Tuple7<T0, T1, T2, T3, T4, T5, T6>> implements TupleMapper<T, Tuple7<T0, T1, T2, T3, T4, T5, T6>> { public Function<T, T4> get4() { return getAndCast(4); } Tuple7MapperImpl(
            Function<T, T0> m0,
            Function<T, T1> m1,
            Function<T, T2> m2,
            Function<T, T3> m3,
            Function<T, T4> m4,
            Function<T, T5> m5,
            Function<T, T6> m6); @Override Tuple7<T0, T1, T2, T3, T4, T5, T6> apply(T t); Function<T, T0> get0(); Function<T, T1> get1(); Function<T, T2> get2(); Function<T, T3> get3(); Function<T, T4> get4(); Function<T, T5> get5(); Function<T, T6> get6();  }### Answer:
@Test void get4() { assertEquals(m4, instance.get4()); }