@gen.engine
    def save_async(self, callback):
        from Mojo.ServerHelpers.RunServer import BACKEND_COLLECTION, DATABASE

        if DATABASE:
            if BACKEND_COLLECTION:
                this_collection = BACKEND_COLLECTION(DATABASE, self)
                self.validate()
                ret_obj = yield gen.Task(this_collection.save, self)

                callback(ret_obj)
Saves the model instance to the database (non blocking), unlike insert() this is an instance method so needs to be called by
dataset/ETHPy150Open lonelycode/Mojo/Mojo/ObjectMapper/ModelPrototype.py/Model.save_async