code: def __init__(self, obj):
      self.buffers = [obj]
  
imports: import warnings
  import copy
  import sys
  from types import FunctionType
  from ipython_genutils import py3compat
  from ipython_genutils.importstring import import_item
  from ipython_genutils.py3compat import string_types, iteritems, buffer_to_bytes, buffer_to_bytes_py2
  from traitlets.log import get_logger
label_desc: Use image node_id 1 to create a new CannedBytes object from inherited base classes: CannedObject with example: obj = CannedBytes(obj)