code: def get_config(config_name):
      if config_name not in _CONFIGS:
          raise ValueError(
              f"Unknown config_name={config_name} not in "
              f"{_CONFIGS.keys()}"
          )
      return _CONFIGS[config_name]
  
label_desc: Use image node_id 1 for calling a global function with example usage: get_config(config_name) and returns: _CONFIGS