code: def default_data_name(self) -> str:
      raise NotImplementedError
  
imports: from __future__ import absolute_import
  from abc import ABC, abstractmethod
  from typing import Any, Dict, Optional, Sequence, Tuple
  import numpy
  from .serialization import Serializable
label_desc: Use image node_id 2 for calling the DataProcessor obj's underlying member method code with example usage: obj.default_data_name() without return types