usage

type Usage struct {
	// Total requests made to the LLM API.
	Requests uint64

	// Total input tokens sent, across all requests.
	InputTokens uint64

	// Details about the input tokens, matching responses API usage details.
	InputTokensDetails responses.ResponseUsageInputTokensDetails

	// Total output tokens received, across all requests.
	OutputTokens uint64

	// Details about the output tokens, matching responses API usage details.
	OutputTokensDetails responses.ResponseUsageOutputTokensDetails

	// Total tokens sent and received, across all requests.
	TotalTokens uint64
}