export interface HttpBenchmarkTarget {
    readonly name: string;
    readonly url: string | ((iteration: number) => string);
    readonly init?: RequestInit | ((iteration: number) => RequestInit | Promise<RequestInit>);
    /** Runs after timing ends; assertions must consume the supplied body. */
    readonly validate?: (response: Response, body: ArrayBuffer) => void | Promise<void>;
    readonly expectedStatus?: number;
}
export interface HttpBenchmarkOptions {
    readonly targets: readonly HttpBenchmarkTarget[];
    readonly rounds?: number;
    readonly warmup?: number;
    readonly fetch?: typeof globalThis.fetch;
    readonly concurrency?: number;
    readonly onSample?: (sample: HttpBenchmarkSample) => void;
}
export interface HttpBenchmarkSample {
    readonly name: string;
    readonly iteration: number;
    readonly status: number;
    readonly ttfbMs: number;
    readonly elapsedMs: number;
    readonly responseBytes: number;
    readonly queryCount?: number;
    readonly rowsRead?: number;
}
export interface HttpBenchmarkResult {
    readonly name: string;
    readonly samples: number;
    readonly status: number;
    /** Full response body time, retained under the original field name. */
    readonly timingMs: {
        readonly p50: number;
        readonly p95: number;
        readonly max: number;
    };
    readonly ttfbMs: {
        readonly p50: number;
        readonly p95: number;
        readonly max: number;
    };
    readonly responseBytes: {
        readonly p50: number;
        readonly p95: number;
        readonly max: number;
    };
    readonly queryCount?: {
        readonly p50: number;
        readonly p95: number;
        readonly max: number;
    };
    readonly rowsRead?: {
        readonly p50: number;
        readonly p95: number;
        readonly max: number;
    };
}
export interface HttpBenchmarkReport {
    readonly version: 1;
    readonly rounds: number;
    readonly warmup: number;
    readonly results: readonly HttpBenchmarkResult[];
}
/** Sample live Worker routes. Optional metric headers come from a test wrapper. */
export declare function benchmarkHttpRoutes(options: HttpBenchmarkOptions): Promise<HttpBenchmarkReport>;
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