Getting Mattertag 3D positional data from Matterport SDK

I used Workshop and I put some mattertags on space. After creating space, I want to get the 3D positional data ofmattertags, so I get in Matterport SDK. But I couldn't find any information about the mattertags'3D positional data. Only I can get from SDK console is

sid
label
description
parseDescription
isActive
mediaSrc
mediaType

or 2D position data(about browser window).

Help.

Thanks.