class_docstr: Abstract base class from which all Tokenizer classes inherit.
  Descendant classes must implement a ``tokenize(text)`` method
  that returns a list of noun phrases as strings.
docstr: Return a list of tokens (strings) for a body of text.
  
  :rtype: list
docstr_tok: ["Return","a","list","of","tokens","(","strings",")","for","a","body","of","text",".",":","rtype",":","list"]
code: def tokenize(self, text):
      """Return a list of tokens (strings) for a body of text.
  
      :rtype: list
      """
      return
  
imports: from __future__ import absolute_import
  from abc import ABCMeta, abstractmethod
  import nltk
  from textblob.compat import with_metaclass
label_desc: Use image node_id 1 for calling the BaseTokenizer obj's underlying member method code with example usage: obj.tokenize(text) without return types