You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: process_property.go
    path of file: ./repos/bk-cmdb/src/scene_server/admin_server/command
    
    the code of the file until where you have to start completion: /*
 * Tencent is pleased to support the open source community by making
 * 蓝鲸智云 - 配置平台 (BlueKing - Configuration System) available.
 * Copyright (C) 2017 THL A29 Limited,
 * a Tencent company. All rights reserved.
 * Licensed under the MIT License (the "License");
 * you may not u
    
func descriptionOpFunc() processPropertyOpF {
	return func(processProperty *metadata.ProcessProperty, key string, val interface{}) error {
		desc, ok := val.(string)
		if !ok {
			return fmt.Errorf("%s not string. val:%s", key, val)
		}
		processProperty.Description.Value = &desc
		blTrue := true
		processProperty.Description.AsDefaultValue = &blTrue
		if err := processProperty.Description.Validate(); err != nil {
			return fmt.Errorf("%s illegal. val:%s. err:%s", key, val, err.Error())
		}

		return nil
	}
}