class_docstr: This class tests if optuna is in effect for create_reduction_func()
class_docstr_tok: ["This","class","tests","if","optuna","is","in","effect","for","create_reduction_func","(",")"]
code: def test_optimize1(self):
      # Ensure the optimizer is run 3 times for all backends.
      func = "cupyx.optimizing._optimize._optimize"
      times_called = 3
  
      # Setting "wraps" is necessary to avoid compilation errors.
      with testing.AssertFunctionIsCalled(
          func,
          times_called=times_called,
          wraps=cupyx.optimizing._optimize._optimize,
      ):
          with cupyx.optimizing.optimize():
              self.x.sum()
          with cupyx.optimizing.optimize():
              self.x.sum(axis=1)
          with cupyx.optimizing.optimize():
              self.x.sum(axis=0)
  
imports: import os
  import tempfile
  import unittest
  from unittest import mock
  import pytest
  import cupy
  from cupy import testing
  from cupy._core import _accelerator
label_desc: Use image node_id 3 for calling the TestOptimizeBackends obj's underlying member method code with example usage: obj.test_optimize1() without return types