开发者可以通过调用此接口获取预置属性信息
接口：
调用示例:
返回字段说明
| 字段 | 说明 |
|---|---|
| _appkey | SE平台分配的appKey，开发者初始化传入 |
| _distinct_id | SE生成的设备ID(IDFV) |
| _account_id | 开发者通过login接口传入的accountID |
| _visitor_id | 开发者通过setVisitorID接口传入的visitorID |
| _session_id | SE内部每次冷启动生成的sessionID |
| _idfa | 设备IDFA |
| _idfv | 设备的IDFV |
| _ua | 设备的UA |
| _language | 设备的系统设置的语言 |
| _time_zone | 设备的时区 |
| _manufacturer | 设备生成厂商 |
| _platform | SDK平台，固定字段2 |
| _os_version | 设备系统版本 |
| _screen_height | 屏幕高 |
| _screen_width | 屏幕宽 |
| _device_model | 设备型号， |
| _device_type | 设备类型，3：iphone，4：ipad，0：其它 |
| _app_version | 应用版本号 |
| _app_version_code | 应用build号 |
| _package_name | 应用包名 |
| _app_name | 应用名称 |
| _channel | 固定字段：AppStore |
| _lib | 固定字段：2 |
| _lib_version | SDK版本号 |
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