code: def delete(self, key, value):
      try:
          os.unlink(self._value_path(key, value))
      except OSError:
          pass
  
imports: from __future__ import absolute_import, division, print_function
  import binascii
  import os
  import warnings
  from hashlib import sha384
  from hypothesis.configuration import mkdir_p, storage_directory
  from hypothesis.errors import HypothesisException, HypothesisWarning
  from hypothesis.internal.compat import hbytes
  from hypothesis.utils.conventions import not_set
label_desc: Use image node_id 9 for calling the DirectoryBasedExampleDatabase obj's underlying member method code with example usage: obj.delete(key, value) without return types