class_docstr: Base Sample class to hold the necessary info and provide atomic operations
class_docstr_tok: ["Base","Sample","class","to","hold","the","necessary","info","and","provide","atomic","operations"]
code: def __repr__(self):
      return "Sample"
  
imports: import copy
  from abc import ABC, abstractmethod
  from ..field import ListField, TextField
  from ....common.settings import MODIFIED_MASK
  from ....common.preprocess.en_processor import EnProcessor
label_desc: Use image node_id 2 for calling the Sample obj's underlying member method code with example usage: obj.__repr__() and returns: str