old_contents: from djangodblog.models import Error
  
  from django.conf import settings
  
  import logging
  
  class DBLogHandler(logging.Handler):
      def emit(self, record):
          Error.objects.create_from_record(record)
new_contents: from djangodblog.models import Error
  
  import logging
  
  class DBLogHandler(logging.Handler):
      def emit(self, record):
          Error.objects.create_from_record(record)
subject: Remove unused import