Token usage statistics.
{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/Usage", "title": "Usage", "additionalProperties": true, "type": "object", "description": "Token usage statistics.", "properties": { "input_tokens": { "type": "integer", "description": "The number of input tokens processed." }, "output_tokens": { "type": "integer", "description": "The number of output tokens generated." } } }