import requests

url = "https://api.diga.io/v1/voice/favourite/{voice_id}"

headers = {"Authorization": "Bearer <token>"}

response = requests.delete(url, headers=headers)

print(response.text)

{
  "status": "error",
  "error_code": "VOICE_NOT_FOUND",
  "message": "Voice not found in favourites"
}