tuple4<A, B, C, D> static method
Implementation
static Decoder<Tuple4<A, B, C, D>> tuple4<A, B, C, D>(
Decoder<A> decodeA,
Decoder<B> decodeB,
Decoder<C> decodeC,
Decoder<D> decodeD,
) =>
tuple3(decodeA, decodeB, decodeC).flatMap((t3) => decodeD.map(t3.append));