class_docstr: An abstract class for extracting subset of examples.
class_docstr_tok: ["An","abstract","class","for","extracting","subset","of","examples","."]
code: def __repr__(self):
      return "SubPopulation"
  
file_path: textflint/textflint/generation/subpopulation/subpopulation.py
imports: import math
  from tqdm import tqdm
  from abc import ABC, abstractmethod
  from ...common.preprocess import EnProcessor
label_desc: Use image node_id 2 for calling the SubPopulation obj's underlying member method code with example usage: obj.__repr__() and returns: str