code: def get_host_os() -> str:
      return platform.system().lower()
  
file_path: airflow/dev/breeze/src/airflow_breeze/utils/host_info_utils.py
imports: from __future__ import annotations
  import platform
  from enum import Enum
label_desc: Use image node_id 3 for calling a global function with example usage: get_host_os() and returns: platform