code: def chains():
      """Share default chain count."""
      return 2
  
imports: import gzip
  import importlib
  import logging
  import os
  import sys
  from typing import Any, Dict, List, Optional, Tuple, Union
  import cloudpickle
  import numpy
  import pytest
  from _pytest.outcomes import Skipped
  from packaging.version import Version
  from ..data import InferenceData, from_dict
label_desc: Use image node_id 3 for calling a global function with example usage: chains() and returns: int