code: def enums():
      """
      Return the dictionary of H₂O enums, retrieved from data in schemas(). For each entry in the dictionary its key is
      the name of the enum, and the value is the set of all enum values.
      """
      enumset = defaultdict(set)
      for schema in schemas():
          for field in schema["fields"]:
              if field["type"] == "enum":
                  enumset[field["schema_name"]].update(field["values"])
      return enumset
  
imports: import argparse
  import atexit
  import codecs
  import errno
  import os
  import platform
  import pprint
  import re
  import requests
  import shutil
  import sys
  import textwrap
  import time
  from collections import defaultdict
label_desc: Use image node_id 12 for calling a global function with example usage: enums() and returns: enumset