code: def init_app(self, app):
          
          self.app = app
          self.__blueprint__ = Blueprint(
              self.__name__,
              self.__name__,
              url_prefix=self.__prefix__,
          )
  
          for url, name, methods in self.__urls__:
              self.blueprint.add_url_rule(
                  url,
                  view_func=getattr(self, name),
                  endpoint=name.replace("r_", ""),
                  methods=methods
              )
          self.app = self.app.register_blueprint(self.blueprint)
  
          return self.blueprint
docs: Initialize the application and register the blueprint
  
          :param app: Flask Application
          :return: Blueprint of the current nemo app
          :rtype: flask.Blueprint