old_contents: from django.db import models
  from multiemailfield.fields import MultiEmailField
  
  
  class Foo(models.Model):
  
      emails = MultiEmailField()
  
  
  
new_contents: from django.db import models
  from multiemailfield.fields import MultiEmailField
  
  
  class Foo(models.Model):
  
      emails = MultiEmailField()
  
subject: apply pep8