      def __str__(self):
          return "%i, %s" % (self.id, self.o2o)
  
  
  @python_2_unicode_compatible
  class FKCaseTestModel(models.Model):
      fk = models.ForeignKey(CaseTestModel, models.CASCADE, related_name='fk_rel')
      integer = models.IntegerField()
  
      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 "%i, %s" % (self.id, self.o2o)
  
  

  class FKCaseTestModel(models.Model):
      fk = models.ForeignKey(CaseTestModel, models.CASCADE, related_name='fk_rel')
      integer = models.IntegerField()
  
      def __str__(self):
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/expressions_case/models.py