code: def add_push(target, name, id_tensor, data_tensor):
      target[name][id_tensor] += data_tensor
  
imports: import multiprocessing
  import os
  import socket
  import time
  import unittest
  import backend
  import dgl
  import numpy
  from dgl.graph_index import create_graph_index
  from numpy.testing import assert_array_equal
  from scipy import sparse
  from utils import generate_ip_config, reset_envs
label_desc: Use image node_id 3 for calling a global function with example usage: add_push(target, name, id_tensor, data_tensor) without return types