import { type GatewayMessageDebugReply } from "../gateway/message-debug-contracts.js";
import type { MessageDebugEntry, MessageDebugClearReceipt } from "../gateway/message-debug-types.js";
export declare class ControlMessageDebugError extends Error {
    readonly httpStatus: number;
    readonly outcome: "rejected" | "unknown";
    constructor(httpStatus: number, outcome: "rejected" | "unknown");
}
export interface ControlMessageDebugServiceOptions {
    currentInstance(): string | undefined;
    forward(instanceId: string, action: "history" | "clear"): Promise<GatewayMessageDebugReply>;
}
/** 所有客户端共用当前网关绑定；没有实例时不转到旧 App 或读取旧缓存。 */
export declare class ControlMessageDebugService {
    private readonly options;
    private closed;
    private active;
    constructor(options: ControlMessageDebugServiceOptions);
    history(): Promise<{
        gatewayInstanceId: string;
        entries: MessageDebugEntry[];
    }>;
    clear(input: unknown): Promise<MessageDebugClearReceipt & {
        gatewayInstanceId: string;
    }>;
    close(): void;
    private current;
    private request;
}
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