Milestone API related issues, merge requests count and complete percentage

Could you add the related issues, merge requests count and complete percentage to Milestone API? I want to display the cell, as it done on web, but i don't want to do any additional API requests.

Current Milestone entity:

{
        "id": 324919,
        "iid": 1,
        "project_id": 2977308,
        "title": "First beta version",
        "description": "Small but usable functionality",
        "state": "closed",
        "created_at": "2017-06-03T19:15:30.033Z",
        "updated_at": "2019-01-03T13:33:38.747Z",
        "due_date": "2017-12-31",
        "start_date": "2017-06-04",
        "web_url": "https://gitlab.com/terrakok/gitlab-client/milestones/1"
    }