{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "UsageStats",
  "type": "object",
  "description": "Token usage statistics for the completion.",
  "properties": {
    "prompt_tokens": {
      "type": "integer",
      "description": "Number of tokens in the prompt.",
      "example": 12
    },
    "completion_tokens": {
      "type": "integer",
      "description": "Number of tokens generated.",
      "example": 14
    },
    "total_tokens": {
      "type": "integer",
      "description": "Total tokens used.",
      "example": 26
    }
  }
}