code: def __str__(self) -> str:
      return "( %d , %d )" % (self.lhs, self.rhs)
  
file_path: PyTorch-BigGraph/torchbiggraph/types.py
imports: from enum import Enum
  from typing import Any, Dict, NamedTuple, TypeVar
  import torch
label_desc: Use image node_id 2 for calling the Bucket obj's underlying member method code with example usage: obj.__str__() and returns: unknown