import type { ChunkChoice } from "./ChunkChoice.js";
export interface ChatCompletionChunk {
    id: string;
    choices: ChunkChoice[];
    created: number;
    model: string;
    object: "chat.completion.chunk";
    service_tier?: string | null;
    system_fingerprint?: string | null;
    usage?: {
        completion_tokens: number;
        prompt_tokens: number;
        total_tokens: number;
    } | null;
}