Type Alias WrapFnReturn<Fn, ErrType>

WrapFnReturn: Fn extends {
    (...args: A1): R1;
    (...args: A2): R2;
    (...args: A3): R3;
    (...args: A4): R4;
    (...args: A5): R5;
}
    ? {
        (...args: A1): IResult<UnwrapResult<R1>, ErrType>;
        (...args: A2): IResult<UnwrapResult<R2>, ErrType>;
        (...args: A3): IResult<UnwrapResult<R3>, ErrType>;
        (...args: A4): IResult<UnwrapResult<R4>, ErrType>;
        (...args: A5): IResult<UnwrapResult<R5>, ErrType>;
    }
    : Fn extends {
        (...args: A1): R1;
        (...args: A2): R2;
        (...args: A3): R3;
        (...args: A4): R4;
    }
        ? {
            (...args: A1): IResult<UnwrapResult<R1>, ErrType>;
            (...args: A2): IResult<UnwrapResult<R2>, ErrType>;
            (...args: A3): IResult<UnwrapResult<R3>, ErrType>;
            (...args: A4): IResult<UnwrapResult<R4>, ErrType>;
        }
        : Fn extends { (...args: A1): R1; (...args: A2): R2; (...args: A3): R3 }
            ? {
                (...args: A1): IResult<UnwrapResult<R1>, ErrType>;
                (...args: A2): IResult<UnwrapResult<R2>, ErrType>;
                (...args: A3): IResult<UnwrapResult<R3>, ErrType>;
            }
            : Fn extends { (...args: A1): R1; (...args: A2): R2 }
                ? {
                    (...args: A1): IResult<UnwrapResult<R1>, ErrType>;
                    (...args: A2): IResult<UnwrapResult<R2>, ErrType>;
                }
                : Fn extends (...args: infer A) => infer R
                    ? (...args: A) => IResult<UnwrapResult<R>, ErrType>
                    : never