-record(config, {
    transitions :: list(scamper@config:transition_rule(any(), any(), any())),
    final_states :: list(any()),
    on_enter :: list({any(),
        fun((any(), any()) -> {ok, any()} | {error, binary()})}),
    on_exit :: list({any(),
        fun((any(), any()) -> {ok, any()} | {error, binary()})}),
    on_transition_state :: list({any(),
        fun((any(), any(), any(), any()) -> {ok, any()} | {error, binary()})}),
    global_on_enter :: list(fun((any(), any()) -> {ok, any()} |
        {error, binary()})),
    global_on_exit :: list(fun((any(), any()) -> {ok, any()} | {error, binary()})),
    global_on_transition :: list(fun((any(), any(), any(), any()) -> {ok, any()} |
        {error, binary()})),
    invariants :: list(fun((any()) -> {ok, nil} | {error, binary()})),
    event_policy :: scamper@config:event_policy(),
    history_limit :: gleam@option:option(integer()),
    history_snapshots :: boolean(),
    timeouts :: list({any(), integer(), any()}),
    timestamp_fn :: fun(() -> integer())
}).