import type { VanaManifestConfig, VanaManifestBlock } from "../core/types.js";
/**
 * Signs a web app manifest block for Vana Desktop App identity verification.
 *
 * Include the returned block under the `vana` key in your web app manifest JSON,
 * and make sure your HTML has `<link rel="manifest" href="/manifest.json">`.
 *
 * @param config - Manifest configuration including private key and app URLs.
 * @returns A signed {@link VanaManifestBlock}.
 *
 * @example
 * ```typescript
 * const vanaBlock = await signVanaManifest({
 *   privateKey: process.env.VANA_PRIVATE_KEY as `0x${string}`,
 *   appUrl: "https://yourapp.com",
 *   privacyPolicyUrl: "https://yourapp.com/privacy",
 *   termsUrl: "https://yourapp.com/terms",
 *   supportUrl: "https://yourapp.com/support",
 *   webhookUrl: "https://yourapp.com/api/webhook",
 * });
 * const manifest = { name: "Your App", vana: vanaBlock };
 * ```
 */
export declare function signVanaManifest(config: VanaManifestConfig): Promise<VanaManifestBlock>;
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