code: public BoxResourceIterable<BoxCollaboration.Info> getAllFileCollaborations(String... fields) {
          return BoxCollaboration.getAllFileCollaborations(this.getAPI(), this.getID(),
                  GET_COLLABORATORS_PAGE_SIZE, fields);
  
      }
docs: Used to retrieve all collaborations associated with the item.
  
  @param fields the optional fields to retrieve.
  @return An iterable of metadata instances associated with the item.