/**
 * Concurrency State Store - 并发控制状态管理
 *
 * 控制同时发送的消息数量，防止过多并发请求
 * 用于优化性能和避免 API 限流
 */
export declare const concurrencyStore$: import("@legendapp/state").Observable<{
    currentActiveSessions: number;
    maxConcurrentMessages: number;
}>;
export declare const concurrencyComputed$: import("@legendapp/state").Observable<{
    canSendNewMessage: () => boolean;
    concurrencyStatus: () => {
        current: number;
        max: number;
        available: number;
    };
}>;
export declare const concurrencyActions: {
    incrementActiveSessions: () => void;
    decrementActiveSessions: () => void;
    setMaxConcurrentMessages: (max: number) => void;
    getConcurrencyStatus: () => {
        current: number;
        max: number;
        available: number;
    };
};
