[Home](./index.md) > [kibana-plugin-plugins-expressions-public](./kibana-plugin-plugins-expressions-public.md) > [ExpressionRenderHandler](./kibana-plugin-plugins-expressions-public.expressionrenderhandler.md) > [update$](./kibana-plugin-plugins-expressions-public.expressionrenderhandler.update_.md) ## ExpressionRenderHandler.update$ property Signature: ```typescript update$: Observable; ```