code: def test_clear_cache(self, xp, dtype):
      @cupy.fuse()
      def f(x, y):
          return x - y * 2
  
      x = testing.shaped_arange((3, 3), xp, dtype)
      y = testing.shaped_arange((3, 3), xp, dtype)
      f.clear_cache()
      return f(x, y)
  
imports: import threading
  import unittest
  from unittest import mock
  import pytest
  import cupy
  from cupy import testing
  from cupy_tests.core_tests.fusion_tests import fusion_utils
label_desc: Use image node_id 1 for calling the TestFusionCompile obj's underlying member method code with example usage: obj.test_clear_cache(xp, dtype) and returns: f, unknown