A couple = two.
A few = 3+ (generally 3-6)
Several = 7-10
A handful = 10-20 (small items like screws)
A lot = 30-50

open class GameplayCallbacks<T : Any> {
    open fun startState(setStateCallback: (GameSituationState) -> Unit) {/* empty by default */}
    open fun startedState(playerCount: Int, config: Any, state: GameSituationState) {/* empty by default */}
    open fun onPreMove(actionIndex: Int, action: Actionable<T, Any>, setStateCallback: (GameSituationState) -> Unit) {/* empty by default */}
    open fun onMove(actionIndex: Int, action: Actionable<T, Any>, actionReplay: ActionReplay) {/* empty by default */}