Connecting layer arrays to an effect using reduce in TypeScript

    const program = pipe(
      layers,
      Chunk.toArray,
      Array.reduce(
        route.value.handler,
        (accum, layer) => {
          if (isFunction(layer)) {
            return Effect.provide(accum, layer(update));
          }
          return Effect.provide(accum, layer);
        },
      )
    )