setRadius(radius) {
    const previousValue = this.get(Property.RADIUS);
    this.set(Property.RADIUS, radius);
    // if the value stays numerical, simply refresh the layer
    if (typeof radius === 'number' && typeof previousValue === 'number') {
      this.changed();
      return;
    }
    this.clearRenderer();
  }
Set the size of the radius in pixels.
@param {import("../style/flat.js").NumberExpression} radius Radius size in pixel (supports expressions).
@api
@observable