minRadiusWithLabel (radius) {
        if (!arguments.length) {
            return this._minRadiusWithLabel;
        }
        this._minRadiusWithLabel = radius;
        return this;
    }
Get or set the minimum radius for label rendering. If a bubble's radius is less than this value
then no label will be rendered.
@memberof BubbleMixin
@instance
@param {Number} [radius=10]
@returns {Number|BubbleMixin}