code: def get_positive_items(self, user_id, sort=False):
      if user_id in self._index_store["positive_sets"]:
          if sort:
              assert (
                  self._sortby is not None
              ), "sortby key is not specified."
              return self._index_store["positive_sorts"][user_id]
          else:
              return list(self._index_store["positive_sets"][user_id])
      else:
          return []
  
file_path: openrec/openrec/tf1/utils/dataset.py
imports: import numpy
  import random
label_desc: Use image node_id 6 for calling the Dataset obj's underlying member method code with example usage: obj.get_positive_items(user_id, sort) and returns: list, self, list