code: def fetch(self, key):
      for v in self.data.get(key, ()):
          yield v
  
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 3 for calling the InMemoryExampleDatabase obj's underlying member method code with example usage: obj.fetch(key) without return types