code: def test_get_and_add_callback(self):
      N = 100
      cupy_arrays = [testing.shaped_random((2, 3)) for _ in range(N)]
  
      if not cuda.runtime.is_hip:
          stream = self.stream
      else:
          # adding callbacks to the null stream in HIP would segfault...
          stream = cuda.Stream()
  
      out = []
      stream_list = []
  
      def _callback(s, _, t):
          out.append(t[0])
          stream_list.append(s.ptr)
  
      for i in range(N):
          numpy_array = cupy_arrays[i].get(stream=stream)
          stream.add_callback(_callback, (i, numpy_array))
  
      stream.synchronize()
      assert out == list(range(N))
      assert all(s == stream.ptr for s in stream_list)
  
imports: import gc
  import threading
  import unittest
  import pytest
  import cupy
  from cupy._creation import from_data
  from cupy import cuda
  from cupy import testing
label_desc: Use image node_id 9 for calling the TestStream obj's underlying member method code with example usage: obj.test_get_and_add_callback() without return types