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Populating an Adaptive Card RichTextBlock from output from Gen AI

Rather than plain text responses from Gen AI, I'd like it to be more well-formatted and hierarchal.
With a little prompt engineering, I can have OpenAI respond with a RichTextBlock formatted response (something like below).

Detail what's involved in a Microsoft Partnership. Provide the well-formatted response as code for inclusion within a Microsoft AdaptiveCard RichTextBlock. The json schema will be 

[{ "type": "TextRun",
 "text": "Microsoft Partnership Overview\n",
 "weight": "Bolder", // lighter, default
 "size": "Large", // small, default, medium, extraLarge,
 "italic": true // optional
 }, {}..]

I can parse the result into a table variable that works when copied and pasted into AdaptiveCardDesigner (with a 1.5 schema).

My question is; for CopilotStudio, how do I bind the table so that can populate the adaptive card correctly?
Below is the Adaptive Card portion of the Topic:

- kind: SendActivity
 id: sendActivity_IGejwb
 activity:
 attachments:
 - kind: AdaptiveCardTemplate
 cardContent: |-
 ={
 type: "AdaptiveCard",
 '$schema': "http://adaptivecards.io/schemas/adaptive-card.json",
 version: "1.6",
 body: [
 {
 type: "RichTextBlock",
 inlines: 
 ForAll(Topic.VarTable,
 {
 type: "TextRun",
 text: text,
 weight: weight,
 size: size,
 italic: italic,
 wrap: true
 }
 )
 }
 ]
 }

Unfortunately, it simply displays an empty message.
Earlier messages confirm the table var is correctly populated.

Categories:

General

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