macaca-chrome如何传入mobileEmulation模拟手机浏览器测试？

查阅过macaca的api，目前没有找到macaca使用chrome驱动如何传入mobileEmulation使chrome表现为手机浏览器h5模式，在selenium中设置如下：
#指定手机设备
* mobileEmulation = {"deviceMetrics": {"width": WIDTH, "height": HEIGHT, "pixelRatio": PIXEL_RATIO}, "userAgent": UA}
* options = webdriver.ChromeOptions()
* options.add_experimental_option('mobileEmulation',mobileEmulation) #重写浏览器驱动，两个入参
* driver = webdriver.Chrome(executable_path='chromedriver.exe',chrome_options=options)
望告之

* **Macaca Version**: 2.0.12

* **Macaca Doctor Logs**:
macaca-doctor version: 2.0.3

* Node.js checklist:
node env: E:\nodejs\node.exe
node version: v8.4.0
Android checklist:

* JAVA version is `1.8.0_131`
JAVA_HOME is set to `E:\Java\jdk1.8.0_131`
ANDROID_HOME is set to `E:\adt-sdk\sdk`
Platforms is set to `E:\adt-sdk\sdk\platforms\android-27`
ADB tool is set to `E:\adt-sdk\sdk\platform-tools\adb.exe`
GRADLE_HOME is set to `E:\gradle-4.3`

* Installed driver list:
android: 2.0.40
chrome: 1.0.7
puppeteer: 1.0.2
* **Operate System**:Win7x64

* **Programming Language**:nodejs,python

Start by comparing Macaca's Chrome driver API with the Selenium mobileEmulation example included in the issue. Determine whether the driver options can carry this setting; done means providing a documented, working way to launch a mobile-emulated Chrome session.

Written by the indexing model from the issue text.