Child Scale on GeckLib

hey guys anybody manage to give scale to Child/baby mobs on GeckoLib Renderer?

@Override
	public void preRender(PoseStack poseStack, SpiderTarantulaMexicanEntity entity, BakedGeoModel model, MultiBufferSource bufferSource, VertexConsumer buffer, boolean isReRender, float partialTick, int packedLight, int packedOverlay, float red,
			float green, float blue, float alpha) {

		float scale = 0.2f;// scale mob here

		this.scaleHeight = scale;
		this.scaleWidth = scale;
		super.preRender(poseStack, entity, model, bufferSource, buffer, isReRender, partialTick, packedLight, packedOverlay, red, green, blue, alpha);
	}