code: def get_available_api_types(cls) -> List[str]:
      return list(itertools.chain.from_iterable(cls.API_TYPES.values()))
  
file_path: chitra/chitra/serve/base.py
imports: import itertools
  from typing import Callable, List, Optional
  from chitra.data_processing import DataProcessor
  from chitra.serve import constants
label_desc: Use image node_id 2 for calling the ModelServer obj's underlying member method code with example usage: obj.get_available_api_types(cls) and returns: list