code: def blueprint(self, blueprint, **options):
          '''Register a blueprint on the application.
  
          :param blueprint: Blueprint object
          :param options: option dictionary with blueprint defaults
          :return: Nothing
          '''
          if blueprint.name in self.blueprints:
              assert self.blueprints[blueprint.name] is blueprint, \
                  'A blueprint with the name "%s" is already registered.  ' \
                  'Blueprint names must be unique.' % \
                  (blueprint.name,)
          else:
              self.blueprints[blueprint.name] = blueprint
              self._blueprint_order.append(blueprint)
          blueprint.register(self, optionsf blueprint(self, blueprint, **options):
          '''Register a blueprint on the application.
  
          :param blueprint: Blueprint object
          :param options: option dictionary with blueprint defaults
          :return: Nothing
          '''
          if blueprint.name in self.blueprints:
              assert self.blueprints[blueprint.name] is blueprint, \
                  'A blueprint with the name "%s" is already registered.  ' \
                  'Blueprint names must be unique.' % \
                  (blueprint.name,)
          else:
              self.blueprints[blueprint.name] = blueprint
              self._blueprint_order.append(blueprint)
          blueprint.register(self, options)
docs: Register a blueprint on the application.
  
          :param blueprint: Blueprint object
          :param options: option dictionary with blueprint defaults
          :return: Nothing