unfollowUser method
取消关注用户
Implementation
Future<V2TimValueCallback<List<V2TimFollowOperationResult>>> unfollowUser({
  required List<String> userIDList,
}) async {
  throw UnimplementedError(
    'unfollowUser has not been implemented.',
  );
}
取消关注用户
Future<V2TimValueCallback<List<V2TimFollowOperationResult>>> unfollowUser({
  required List<String> userIDList,
}) async {
  throw UnimplementedError(
    'unfollowUser has not been implemented.',
  );
}