/**
 * Embedded HTTP Server for MCP
 * Serves draw.io embed with state sync and history UI
 */
interface SessionState {
    xml: string;
    version: number;
    lastUpdated: Date;
    svg?: string;
    syncRequested?: number;
    exportFormat?: "png" | "svg";
    exportData?: string;
}
export declare const stateStore: Map<string, SessionState>;
export declare function getState(sessionId: string): SessionState | undefined;
export declare function setState(sessionId: string, xml: string, svg?: string): number;
export declare function requestSync(sessionId: string): boolean;
export declare function waitForSync(sessionId: string, timeoutMs?: number): Promise<boolean>;
export declare function startHttpServer(port?: number): Promise<number>;
export declare function stopHttpServer(): void;
export declare function shutdown(): void;
export declare function getServerPort(): number;
export {};
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