# NodeWithOutput

    protocol NodeWithOutput : https://developers.home.google.com/reference/swift/GoogleHomeSDK/Protocols/Node.html

A protocol that specifies when a node that can produce output,
such as `https://developers.home.google.com/reference/swift/GoogleHomeSDK/Protocols/Starter.html` or `https://developers.home.google.com/reference/swift/GoogleHomeSDK/Structs/StateReader.html`.
- `


  ### [output](https://developers.home.google.com/reference/swift/GoogleHomeSDK/Protocols/NodeWithOutput#/s:13GoogleHomeSDK14NodeWithOutputP6outputSSvp)


  ` Data that uniquely identifies a `https://developers.home.google.com/reference/swift/GoogleHomeSDK/Protocols/Node.html`. Must be unique per `https://developers.home.google.com/reference/swift/GoogleHomeSDK/Protocols/Automation.html`.

  #### Declaration

  Swift

      var output: String { get }