/** Test/performance instrumentation. Never adds response headers or logs data. */
import { type RequestDiagnosticRecord } from "./requestDiagnostics.js";
export type { RequestDiagnosticRecord } from "./requestDiagnostics.js";
export declare function runWithRequestDiagnostics(options: {
    surface: RequestDiagnosticRecord["surface"];
    bindings: {
        d1?: boolean;
        kv?: boolean;
        r2?: boolean;
    };
}, run: () => Promise<Response>, observe: (record: RequestDiagnosticRecord) => void | Promise<void>): Promise<Response>;
/** Wrap before passing this same binding to Auth and D1DatabaseDriver. */
export declare function instrumentD1(db: D1Database): D1Database;
export declare function instrumentKv(namespace: KVNamespace): KVNamespace;
/** Payload bytes only; unconsumed/partially consumed GET bodies remain unknown.
 * A successful PUT of the exact GET stream confirms both transfers without
 * wrapping the stream (R2 needs its native known-length property). */
export declare function instrumentR2(bucket: R2Bucket): R2Bucket;
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