class_docstr: A property that is only computed once per instance and then replaces
  itself with an ordinary attribute. Deleting the attribute resets the
  property.
  
  Credit to Marcel Hellkamp, author of bottle.py.
code: def __init__(self, func):
      self.__doc__ = getattr(func, "__doc__")
      self.func = func
  
file_path: TextBlob/textblob/decorators.py
imports: from __future__ import absolute_import
  from functools import wraps
  from textblob.exceptions import MissingCorpusError
label_desc: Use image node_id 1 to create a new cached_property object from inherited base classes: object with example: obj = cached_property(func)