Action7<T1, T2, T3, T4, T5, T6, T7> typedef
Implementation
typedef Action7<T1, T2, T3, T4, T5, T6, T7> = FutureOr<void> Function(
T1 arg1,
T2 arg2,
T3 arg3,
T4 arg4,
T5 arg5,
T6 arg6,
T7 arg7,
);