code: def is_config_file(path):
      return Path(path).suffix == CONFIG_FILE_EXTENSION
  
file_path: clearml/clearml/backend_config/defs.py
imports: from os.path import expanduser, expandvars, exists
  from pathlib2 import Path
  from .environment import EnvEntry
label_desc: Use image node_id 1 for calling a global function with example usage: is_config_file(path) and returns: unknown