code: def _tf_version(tf, state):
      try:
          return tf.__version__
      except AttributeError as e:
          state.errors = True
          return _warn(f"ERROR ({e})")
  
file_path: guildai/guild/commands/tensorflow_check_main.py
imports: import os
  import re
  import subprocess
  import sys
  import click
label_desc: Use image node_id 4 for calling a global function with example usage: _tf_version(tf, state) and returns: tf, _warn