code: def test_streamGetCtx(self):
      s = cupy.cuda.Stream()
      ctx = driver.streamGetCtx(s.ptr)
      ctx2 = driver.ctxGetCurrent()
      assert ctx == ctx2
  
file_path: cupy/tests/cupy_tests/cuda_tests/test_driver.py
imports: import pickle
  import threading
  import unittest
  import cupy
  from cupy import testing
  from cupy.cuda import driver
label_desc: Use image node_id 4 for calling the TestDriver obj's underlying member method code with example usage: obj.test_streamGetCtx() without return types