old_contents: # MIT License
  # Copyright (c) 2017 MassChallenge, Inc.
  
  
  class APIRouter(object):
  
      def allow_migrate(self, db, app_label, model_name=None, **hints):
          """
          Make sure that we don't migrate
          apps shared by both accelerate and impact
          """
          if app_label in [
                  'auth',
                  'admin',
                  'sessions',
                  'sites',
                  'contenttypes']:
              return False
          return True
  
new_contents: # MIT License
  # Copyright (c) 2017 MassChallenge, Inc.
  
  
  class APIRouter(object):
  
      def allow_migrate(self, db, app_label, model_name=None, **hints):
          """
          Make sure that we don't migrate
          apps shared by both accelerate and impact
          """
          if app_label in [
                  'auth',
                  'admin',
                  'sessions',
                  'simpleuser',
                  'sites',
                  'contenttypes']:
              return False
          return True
  
subject: Add simpleuser