MMKTrafficDelegate

@protocol MMKTrafficDelegate <NSObject>

- (void)onTrafficChangedWithTrafficLevel:
    (nullable MMKTrafficLevel *)trafficLevel;
Triggered when traffic level changes

- (void)onTrafficLoading;
Triggered when traffic information is loading

- (void)onTrafficExpired;
Triggered when traffic information expires

- (void)onTrafficChangedWithTrafficLevel:
    (nullable MMKTrafficLevel *)trafficLevel;

- (void)onTrafficLoading;

- (void)onTrafficExpired;