Interface OpenAIUsagePayload

interface OpenAIUsagePayload {
    completion_tokens?: number;
    completion_tokens_details?: { reasoning_tokens?: number };
    input_tokens?: number;
    input_tokens_details?: {
        cached_tokens?: number;
        cache_write_tokens?: number;
    };
    output_tokens?: number;
    output_tokens_details?: { reasoning_tokens?: number };
    prompt_tokens?: number;
    prompt_tokens_details?: {
        cached_tokens?: number;
        cache_write_tokens?: number;
    };
}