code: def init():
      """Helper function to initialize logging in a testbed scenario.
      Specifically, write timestamp and version information, then
      initialize autogen logging.
  
      Args:
          None
  
      Returns:
          None
      """
  
      # Print some information about the run
      with open("timestamp.txt", "wt") as f:
          f.write("Timestamp: " + datetime.now().isoformat() + "\n")
          f.write(
              "pyautogen version: " + str(autogen.__version__) + "\n"
          )
  
      # Start logging
      if AUTOGEN_VERSION < packaging.version.parse("0.2.0b1"):
          autogen.Completion.start_logging(compact=False)
  
file_path: autogen/samples/tools/testbed/includes/testbed_utils.py
imports: from pkg_resources import packaging
  from datetime import datetime
  import os
  import autogen
  import json
label_desc: Use image node_id 2 for calling a global function with example usage: init() without return types