MultiArgFunctionFutureOr4<T, S, U, V, W> typedef
MultiArgFunctionFutureOr4<T, S, U, V, W> =
MultiArgFunction4<FutureOr<T> , S, U, V, W>
a typedef for an async "multi-argument" Function
Implementation
typedef MultiArgFunctionFutureOr4<T, S, U, V, W>
= MultiArgFunction4<FutureOr<T>, S, U, V, W>;