How can I limit the api of certain types exposed to javascript?

[U-100]

Let me present an example. I'm doing something like this:
engine.SetValue("model", team)
Now a team contains units, i.e. in C# it's:

    public interface IModel
    {
        int teamId { get; } // team id
        IReadOnlyList<IUnitControl> myUnits { get; }
        IReadOnlyList<IUnit> enemyUnits { get; }
    }

Now here's what I'm trying to achieve - if a unit belongs to the team then it's api contains control methods like Move(), Attack() etc. But it it's a unit of another team, then only read-only methods and properties are available, like GetPosition(). In C# units implement two interfaces - IUnit and IUnitControl. But when I expose units to javascript all control methods are available even for enemy units.
Is there a way I could customize which methods of a C# object get exposed to javascript?