code: def most_frequent(items):
      """Returns the set of items which appear most frequently in the input"""
      if not items:
          return
      item_counts = Counter(items).most_common()
      max_freq = item_counts[0][1]
      most_frequent_items = [
          c[0] for c in item_counts if c[1] == max_freq
      ]
      return most_frequent_items
  
imports: import logging
  import os
  import random
  import re
  import uuid
  from collections import Counter, defaultdict
  from shutil import rmtree
  from typing import Dict, List, Optional, Tuple
  import pandas
  import pkg_resources
  import yaml
  from jinja2 import BaseLoader, Environment, meta
  from ..constants import AUTOMM
label_desc: Use image node_id 5 for calling a global function with example usage: most_frequent(items) and returns: most_frequent_items