code: public synchronized void logoutAllUsers(Context context) {
          getAuthInfoMap(context);
          for (String userId : mCurrentAccessInfo.keySet()) {
              BoxSession session = new BoxSession(context, userId);
              logout(session);
          }
          authStorage.clearAuthInfoMap(context);
  
      }
docs: Log out all users. After logging out, all authentication information will be gone.
  @param context current context