code: def test_multiple_wait(self):
      # Tests that a wait operation can be performed multiple times on the same event
      # by different streams.
  
      self.assert_good_kernel_launch(
          stream_id(1), read_write=[tensor_id(1)]
      )
      self.handler._handle_event_record(event_id(1), stream_id(1))
      self.handler._handle_event_wait(event_id(1), stream_id(2))
      self.handler._handle_event_wait(event_id(1), stream_id(3))
  
      self.assert_good_kernel_launch(
          stream_id(2), read_only=[tensor_id(1)]
      )
      self.assert_good_kernel_launch(
          stream_id(3), read_only=[tensor_id(1)]
      )
  
imports: import sys
  import textwrap
  import traceback
  from typing import List
  import torch
  import torch.cuda._sanitizer
  from torch.cuda._sanitizer import StreamId, DataPtr, EventId
  from torch.testing._internal.common_utils import TestCase, run_tests, NoTest, TEST_CUDA
label_desc: Use image node_id 19 for calling the TestEventHandler obj's underlying member method code with example usage: obj.test_multiple_wait() without return types