code: def channels():
      channels = types.ModuleType("channels")
      exec(FAKE_CHANNELS_MODULE, channels.__dict__)
      return channels
  
imports: import types
  from packaging.version import Version
  from importlib.metadata import version
  import numpy
  import pandas
  import pytest
  import altair
  from altair.utils.core import parse_shorthand, update_nested, infer_encoding_types
  from altair.utils.core import infer_dtype
label_desc: Use image node_id 10 for calling a global function with example usage: channels() and returns: channels