code: def _create_item2cate(instance_file):
      logger.info("creating item2cate dict")
      global item2cate
      instance_df = pd.read_csv(
          instance_file,
          sep="\t",
          names=["label", "user_id", "item_id", "timestamp", "cate_id"],
      )
      item2cate = instance_df.set_index("item_id")["cate_id"].to_dict()
  
imports: import os
  import shutil
  import pandas
  import gzip
  import random
  import logging
  import _pickle
  from recommenders.utils.constants import SEED
  from recommenders.datasets.download_utils import maybe_download
label_desc: Use image node_id 7 for calling a global function with example usage: _create_item2cate(instance_file) without return types