Scripting a SharePoint 2013 hosted APP Deployment Using the CSOM?

Hi, I need some help.

I would like to know how I can go about scripting the deployment of a SharePoint 2013 hosted APP using the Client Side Object Model?

I have looked into the Microsoft.SharePoint.Client using reflector and I can see LoadAndInstallApp(...               

There wasn't much documentation

public Microsoft.SharePoint.Client.AppInstance LoadAndInstallApp(System.IO.Stream appPackageStream)
    Member of Microsoft.SharePoint.Client.Web

and

public Microsoft.SharePoint.Client.AppInstance LoadApp(System.IO.Stream appPackageStream, int installationLocaleLCID)
    Member of Microsoft.SharePoint.Client.Web

Any help, much appreciated.

Thanks