{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Usage",
  "type": "object",
  "properties": {
    "prompt_tokens": {
      "type": "integer",
      "description": "Number of tokens in the prompt"
    },
    "completion_tokens": {
      "type": "integer",
      "description": "Number of tokens in the completion"
    },
    "total_tokens": {
      "type": "integer",
      "description": "Total tokens used"
    }
  }
}