export declare const CHROME_FLAGS: string[];
export declare const SCREEN_DIMENSIONS: {
    readonly desktop: {
        readonly width: 1350;
        readonly height: 940;
    };
    readonly mobile: {
        readonly width: 360;
        readonly height: 640;
    };
};
export declare const THROTTLING_CONFIG: {
    readonly enabled: {
        readonly rttMs: 150;
        readonly throughputKbps: 1638.4;
        readonly cpuSlowdownMultiplier: 4;
    };
    readonly disabled: {
        readonly rttMs: 0;
        readonly throughputKbps: number;
        readonly cpuSlowdownMultiplier: 1;
    };
};
export declare const KEY_METRICS: readonly ["first-contentful-paint", "largest-contentful-paint", "total-blocking-time", "cumulative-layout-shift", "speed-index", "interactive"];
export declare const LCP_OPPORTUNITIES: readonly ["render-blocking-resources", "unused-css-rules", "unused-javascript", "modern-image-formats", "uses-optimized-images", "efficient-animated-content", "preload-lcp-image", "uses-text-compression"];
export declare const SECURITY_AUDITS: readonly ["is-on-https", "uses-http2", "no-vulnerable-libraries", "csp-xss", "external-anchors-use-rel-noopener"];
export declare const BUDGET_METRIC_MAPPINGS: readonly [{
    readonly key: "firstContentfulPaint";
    readonly metric: "first-contentful-paint";
    readonly unit: "ms";
}, {
    readonly key: "largestContentfulPaint";
    readonly metric: "largest-contentful-paint";
    readonly unit: "ms";
}, {
    readonly key: "totalBlockingTime";
    readonly metric: "total-blocking-time";
    readonly unit: "ms";
}, {
    readonly key: "cumulativeLayoutShift";
    readonly metric: "cumulative-layout-shift";
    readonly unit: "score";
}, {
    readonly key: "speedIndex";
    readonly metric: "speed-index";
    readonly unit: "ms";
}];
export declare const DEFAULTS: {
    LCP_THRESHOLD: number;
    MIN_UNUSED_JS_BYTES: number;
    MIN_RESOURCE_SIZE_KB: number;
};