@classmethod
    @gen.engine
    def find_one_async(klass, *args, **kwargs):
        from Mojo.ServerHelpers.RunServer import BACKEND_COLLECTION, DATABASE
        klass.collection_name = klass.__name__

        cb = kwargs['callback']
        del(kwargs['callback'])

        if DATABASE:
            if BACKEND_COLLECTION:
                this_collection = BACKEND_COLLECTION(DATABASE, klass)
                ret_obj = yield gen.Task(this_collection.find_one, *args, **kwargs)

                cb(ret_obj)
Return the list of all info for all users
dataset/ETHPy150Open lonelycode/Mojo/Mojo/ObjectMapper/ModelPrototype.py/Model.find_one_async--crossover with--dataset/ETHPy150Open saltstack/salt/salt/modules/pw_user.py/getent