/**
 * Migration Performance Monitor
 * Tracks and reports performance metrics during the migration
 */
declare class MigrationMonitor {
    private metricsPath;
    private snapshots;
    constructor();
    /**
     * Take a performance snapshot
     */
    takeSnapshot(): Promise<void>;
    /**
     * Save snapshot to disk
     */
    private saveSnapshot;
    /**
     * Generate performance report
     */
    generateReport(): Promise<string>;
    /**
     * Format response metrics comparison
     */
    private formatResponseMetrics;
}
export declare const migrationMonitor: MigrationMonitor;
export {};
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