class_docstr: wrapper of abstrcat Frontend
docstr: config property 
code: def config(self):
      """config property"""
      return self._config
  
file_path: delta/delta/data/frontend/base_frontend.py
imports: import abc
  import delta.compat
  from delta.utils.hparam import HParams
label_desc: Use image node_id 2 for calling the BaseFrontend obj's underlying member method code with example usage: obj.config() and returns: self