code: private static Request newStatusUpdateRequest(Session session, String message, String placeId, List<String> tagIds,
              Callback callback) {
  
          Bundle parameters = new Bundle();
          parameters.putString("message", message);
  
          if (placeId != null) {
              parameters.putString("place", placeId);
          }
  
          if (tagIds != null && tagIds.size() > 0) {
              String tags = TextUtils.join(",", tagIds);
              parameters.putString("tags", tags);
          }
  
          return new Request(session, MY_FEED, parameters, HttpMethod.POST, callback);
      }
docs: Creates a new Request configured to post a status update to a user's feed.
  
  @param session
  the Session to use, or null; if non-null, the session must be in an opened state
  @param message
  the text of the status update
  @param placeId
  an optional place id to associate with the post
  @param tagIds
  an optional list of user ids to tag in the post
  @param callback
  a callback that will be called when the request is completed to handle success or error conditions
  @return a Request that is ready to execute