Triggered when the prompt view Generate output button is clicked. The prompt text is available through the event argument. Suitable to make a request to the AI service to receive an output. Use the addPromptOutput method to add the generated output to the promptOutputs collection.

The prompt, output, history and isRetry properties are available in the event argument. When the output is generated after clicking the retry button of an output, the isRetry property is true and the output property is the output content of the output card. The history property is an array of prompt outputs generated before the current output.

You can prevent the default behavior of the promptRequest event by calling e.preventDefault() in the event handler.