cast = download("https://api.sampleapis.com/futurama/cast") characters = download("https://api.sampleapis.com/futurama/characters") episodes = download("https://api.sampleapis.com/futurama/episodes") async { cast_len = length(from_json(cast)) characters_len = length(from_json(characters)) episodes_len = length(from_json(episodes)) } output ([cast_len, characters_len, episodes_len])