code: def test_cache_clear(self):
      first_compare = filecmp.cmp(
          self.name, self.name_same, shallow=False
      )
      second_compare = filecmp.cmp(
          self.name, self.name_diff, shallow=False
      )
      filecmp.clear_cache()
      self.assertTrue(
          len(filecmp._cache) == 0,
          "Cache not cleared after calling clear_cache",
      )
  
imports: import filecmp
  import os
  import shutil
  import tempfile
  import unittest
  from test import support
  from test.support import os_helper
label_desc: Use image node_id 5 for calling the FileCompareTestCase obj's underlying member method code with example usage: obj.test_cache_clear() without return types