code: def add_pid_thread(_, __, event_dict):
      pid = os.getpid()
      thread = threading.current_thread().getName()
      event_dict["pid_thread"] = f"{pid}-{thread}"
      return event_dict
  
file_path: baal/baal/utils/log_configuration.py
imports: import collections
  import inspect
  import os
  import threading
  import structlog
  from structlog.dev import ConsoleRenderer
  from structlog.processors import StackInfoRenderer, TimeStamper, format_exc_info
  from structlog.stdlib import add_log_level
label_desc: Use image node_id 4 for calling a global function with example usage: add_pid_thread(_, __, event_dict) and returns: event_dict