code: def to_iterable():
      return [("I like turtles", "pos"), ("I hate turtles", "neg")]
  
imports: import os
  import unittest
  from nose.tools import *
  from textblob import formats
  from textblob.compat import unicode
label_desc: Use image node_id 1 for calling the CustomFormat obj's underlying member method code with example usage: obj.to_iterable() and returns: list