class_docstr: Mapping that supports bytes keys
class_docstr_tok: ["Mapping","that","supports","bytes","keys"]
code: def __init__(self):
      self.d = {}
  
imports: import unittest
  import dbm
  import shelve
  import pickle
  import os
  from test.support import os_helper
  from collections.abc import MutableMapping
  from test.test_dbm import dbm_iterator
  from test import mapping_tests
label_desc: Use image node_id 1 to create a new byteskeydict object from inherited base classes: MutableMapping with example: obj = byteskeydict()