/// 会话相关的事件名常量
class SessionEvents {
  static const String sessionStart = 'app_session_start';
  static const String sessionEnd = 'app_session_end';
  static const String heartbeat = 'presence_heartbeat';

  SessionEvents._();
}

/// 会话状态
enum SessionState {
  foreground,
  background,
  unknown,
}
