Enable key phrase detection?

[bergutman]

Is there a way to enable key phrase detection so that Kitt only responds upon hearing a trigger phrase such as "hey kitt?" I apologize if there's an obvious answer, I'm not well versed in livekit yet. Perusing through the code I noticed that under transcriber.go there's a list of catchphrases:

Phrases: []*sttpb.PhraseSet_Phrase{
        {Value: "${hello} ${gpt}"},
        {Value: "${gpt}"},
	{Value: "Hey ${gpt}"},
	{Value: "Kitt"},
	{Value: "Kit-t"},
	{Value: "Kit"},
} 

No clue if this is even implemented yet and/or how to enable it but very intrigued!