/**
 * Mock Analytics Engine for testing Cloudflare Workers
 *
 * Provides a mock implementation of AnalyticsEngineDataset for testing
 * analytics and metrics tracking.
 *
 * @example
 * ```typescript
 * const analytics = createMockAnalyticsEngine();
 *
 * // Use in tests
 * const env = { ANALYTICS: analytics as unknown as AnalyticsEngineDataset };
 *
 * // After running code that writes analytics
 * expect(analytics._dataPoints).toHaveLength(1);
 * expect(analytics._dataPoints[0].indexes).toContain('command_usage');
 *
 * // Reset between tests
 * analytics._reset();
 * ```
 */
/**
 * Analytics data point
 */
export interface AnalyticsDataPoint {
    /** String indexes (dimensions) */
    indexes?: string[];
    /** Numeric values (metrics) */
    doubles?: number[];
    /** Binary data */
    blobs?: ArrayBuffer[];
    /** Timestamp of when the data point was written */
    timestamp: number;
}
/**
 * Extended mock Analytics Engine with test helpers
 */
export interface MockAnalyticsEngine {
    writeDataPoint: (dataPoint?: {
        indexes?: string[];
        doubles?: number[];
        blobs?: ArrayBuffer[];
    }) => void;
    /** Array of all data points written (for assertions) */
    _dataPoints: AnalyticsDataPoint[];
    /** Reset all data points */
    _reset: () => void;
}
/**
 * Creates a mock Analytics Engine for testing
 *
 * @returns A mock Analytics Engine that can be cast to AnalyticsEngineDataset
 */
export declare function createMockAnalyticsEngine(): MockAnalyticsEngine;
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