docstr: dummy join for standalone
docstr_tok: ["dummy","join","for","standalone"]
code: def join(self):
      """dummy join for standalone"""
      yield
  
imports: import argparse
  import time
  from contextlib import contextmanager
  import numpy
  import sklearn.linear_model
  import sklearn.metrics
  import torch
  import torch.nn
  import torch.nn.functional
  import torch.optim
  import tqdm
  import dgl
  import dgl.function
  import dgl.nn.pytorch
label_desc: Use image node_id 4 for calling the DistSAGE obj's underlying member method code with example usage: obj.join() without return types