import type { ChatParams, Model } from "./types";
import type Chats from "./interfaces/chats";
import type Engine from "./enums/engine";
import type RateLimiter from "./rate_limiter";
type PoolOptions = {
    engine: Engine;
    model: Model;
    rateLimiter: RateLimiter;
    apiKey?: string;
    host?: string;
    chatParams?: ChatParams;
    concurrency: number;
};
export default class ChatPool {
    readonly rateLimiter: RateLimiter;
    private available;
    private waiters;
    private readonly slots;
    private constructor();
    static create(options: PoolOptions): ChatPool;
    get size(): number;
    /** Returns every triple, in order. Used for per-worker sharding. */
    all(): Chats[];
    run<T>(fn: (chats: Chats) => Promise<T>): Promise<T>;
    private acquire;
    private release;
}
export {};