TextView.LineSpacingMultiplier property not available as advertised

In a layout I decrease the line spacing of a text view by using the attribute

android:lineSpacingMultiplier="0.8"

At run time I want to read the value of that attribute on the textview like this:

var title = FindViewById<TextView>(Resource.Id.screen_name);
   Console.WriteLine("Line multiplier: {0}", title.LineSpacingMultiplier);

which throws this error:

Java.Lang.NoSuchMethodError: getLineSpacingMultiplier

Is there another way to get hold of this value?