old_contents: from feder.cases import models
  from feder.institutions.factories import InstitutionFactory
  from feder.monitorings.factories import MonitoringFactory
  import factory
  from feder.users.factories import UserFactory
  
  
  class CaseFactory(factory.django.DjangoModelFactory):
      name = factory.Sequence('case-{0}'.format)
      user = factory.SubFactory(UserFactory)
      institution = factory.SubFactory(InstitutionFactory)
  
      @factory.lazy_attribute
      def monitoring(self):
          return MonitoringFactory(user=self.user)
  
      class Meta:
          model = models.Case
  
new_contents: from feder.institutions.factories import InstitutionFactory
  from feder.monitorings.factories import MonitoringFactory
  import factory
  from feder.users.factories import UserFactory
  from .models import Case
  
  
  class CaseFactory(factory.django.DjangoModelFactory):
      name = factory.Sequence('case-{0}'.format)
      user = factory.SubFactory(UserFactory)
      institution = factory.SubFactory(InstitutionFactory)
  
      @factory.lazy_attribute
      def monitoring(self):
          return MonitoringFactory(user=self.user)
  
      class Meta:
          model = Case
  
subject: Clean up import in CaseFactory