class_docstr: Class for sampling graph.
docstr: Return a string representation of the graph.
  
  Returns
  -------
  str
      String representation of the graph.
docstr_tok: ["Return","a","string","representation","of","the","graph",".","Returns","--","--","--","-","str","String","representation","of","the","graph","."]
code: def __repr__(self) -> str:
      """Return a string representation of the graph.
  
      Returns
      -------
      str
          String representation of the graph.
      """
      raise NotImplementedError
  
file_path: dgl/python/dgl/graphbolt/sampling_graph.py
imports: from typing import Dict, Union
  import torch
label_desc: Use image node_id 2 for calling the SamplingGraph obj's underlying member method code with example usage: obj.__repr__() without return types