code: def create(self, name):
          
          if not os.path.exists(self.directory):
              os.makedirs(self.directory)
  
          filename = self.get_new_filename(name)
          with open(os.path.join(self.directory, filename), 'w') as fp:
              fp.write("def up(db): pass\n\n\n")
              fp.write("def down(db): pass\n")
              logger.info(filename)
docs: Create a new empty migration.