Send a message to a debug chat session

curl --request POST \
  --url https://api.us.poly.ai/v1/agents/{agentId}/debug-chat/{conversationId} \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "asrLangCode": "<string>",
  "ttsLangCode": "<string>",
  "message": "",
  "metadata": {}
}
'

{
  "conversationId": "<string>",
  "userInput": "<string>",
  "response": "<string>",
  "metadata": {
    "asrLangCode": "<string>",
    "ttsLangCode": "<string>",
    "agentResponseAudioUrl": "<string>"
  },
  "conversationEnded": true,
  "delayedResponse": true
}