old_contents: from __future__ import (absolute_import, division,
                          print_function, unicode_literals)
  from builtins import *
  
  from sqlalchemy.engine import Engine
  
  from zsl import inject
  from zsl.db.model.sql_alchemy import metadata
  
  
  class DbTestCase(object):
      @inject(engine=Engine)
      def createSchema(self, engine):
          metadata.bind = engine
          metadata.create_all(engine)
  
new_contents: from __future__ import (absolute_import, division,
                          print_function, unicode_literals)
  from builtins import *
  
  from sqlalchemy.engine import Engine
  
  from zsl import inject
  from zsl.db.model.sql_alchemy import metadata
  
  
  class DbTestCase(object):
      @inject(engine=Engine)
      def createSchema(self, engine):
          metadata.bind = engine
          metadata.create_all(engine)
  
  
  
subject: Add newline at the end of the file.