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])