      def __str__(self):
          return self.address
  
  
  @python_2_unicode_compatible
  class Book(models.Model):
      title = models.CharField(max_length=255)
      authors = models.ManyToManyField(Author, related_name='books')
  
      def __str__(self):
 
</s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add 
      def __str__(self):
          return self.address
  
  

  class Book(models.Model):
      title = models.CharField(max_length=255)
      authors = models.ManyToManyField(Author, related_name='books')
  
      def __str__(self):
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/prefetch_related/models.py