Get an Async TTS Job

curl --request GET \
  --url https://api.play.ai/api/v1/tts/{asyncTtsJobId} \
  --header 'Authorization: Bearer <token>' \
  --header 'X-USER-ID: <api-key>'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "createdAt": "2023-11-07T05:31:56Z",
  "input": {},
  "completedAt": "2023-11-07T05:31:56Z",
  "output": {
    "status": "COMPLETED",
    "url": "<string>",
    "contentType": "<string>",
    "fileSize": 123,
    "duration": 123
  }
}