import type { HttpSigningTransportRef } from './transportRef';
/**
 * Returns a `fetch` implementation that adds ML-DSA-65 signing headers when
 * {@link HttpSigningTransportRef.signingEnabled} and `vaultUnlocked` are true
 * and credentials are present.
 *
 * @param innerFetch - Underlying fetch (typically `globalThis.fetch`)
 * @param ref - Mutable signing state owned by `LibQC`
 */
export declare function createSignedHttpFetchFn(innerFetch: typeof fetch, ref: HttpSigningTransportRef): typeof fetch;