var pushToPull = require('push-to-pull');

// Dumb filter that inputs numbers and outputs that many monkeys
// Encoded as an (emit) -> emit transform filter.
function pushFilter(emit) {
  return function (item) {
    if (item === undefined) return emit();
    for (var i = 1; i <= item; i++) {
      emit("MONKEY " + i);
    }
  }
}

// Same filter, but as a (stream) -> stream transform filter
var pullFilter = pushToPull(pushFilter);