code: def list_input_files(self) -> List[str]:
      pass
  
file_path: SynapseML/tools/docgen/docgen/core.py
imports: import multiprocessing
  from abc import ABC, abstractmethod
  from typing import List
label_desc: Use image node_id 2 for calling the Channel obj's underlying member method code with example usage: obj.list_input_files() without return types