  Make sure to set ``related_name`` if you use relationships to the same table.
  """
  from django.db import models
  from django.utils import six
  from django.utils.encoding import python_2_unicode_compatible
  
  
  class User(models.Model):
      username = models.CharField(max_length=20)
  
 
</s> remove from django.utils.encoding import python_2_unicode_compatible
 </s> add  </s> remove from django.utils.encoding import python_2_unicode_compatible
 </s> add  </s> remove from django.utils.encoding import python_2_unicode_compatible
 </s> add  </s> remove from django.utils.encoding import python_2_unicode_compatible
 </s> add  </s> remove from django.utils.encoding import python_2_unicode_compatible
 </s> add 
  Make sure to set ``related_name`` if you use relationships to the same table.
  """
  from django.db import models
  from django.utils import six

  
  
  class User(models.Model):
      username = models.CharField(max_length=20)
  
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/m2m_and_m2o/models.py