How to create AppIntent with rich text without compiler warnings?

I am trying to create an AppIntent that takes a rich text parameter. When I try the following it seems to work, but I get compiler errors because AttributedString doesn't conform to Sendable.

struct RichTextIntent: AppIntent {
    static var title: LocalizedStringResource = "Rich Text"

    @Parameter(title: "Text")
    var richText: AttributedString

    func perform() async throws -> some IntentResult {
        .result()
    }
}

Is there a way to accept a rich text parameter without compiler warnings?