/// A domesticated South American camelid (Lama glama).
///
/// Andean cultures have used llamas as meat and pack
/// animals since pre-Hispanic times.
///
/// Just like any other animal, llamas need to eat,
/// so don't forget to [feed] them some [Food].
class Llama {
String? name;
/// Feeds your llama [food].
///
/// The typical llama eats one bale of hay per week.
void feed(Food food) {
}
/// Exercises your llama with an [activity] for
/// [timeLimit] minutes.
void exercise(Activity activity, int timeLimit) {
// ...
}
}