Render between batches using scene2d actor

gistfile1.txt

final Matrix4 camera = stage.getCamera().combined;

Actor customActor = new Actor() {

	@Override
	public void draw (Batch batch, float parentAlpha) {
	
		batch.end();
		
        	shapeRenderer.setProjectionMatrix(camera);
        	shapeRenderer.begin(ShapeType.Line);
        	shapeRenderer.setColor(1, 1, 0, 1);
        	shapeRenderer.line(1, 1, 100, 100);
        	shapeRenderer.end();

		batch.begin();
	}

};

stage.addActor(customActor);