/**
 * Prefix every line in a multi-line source fragment.
 *
 * @param source Source fragment to indent.
 * @param prefix Prefix to prepend to every line.
 * @returns The source fragment with each line prefixed.
 */
export declare function indentMultiline(source: string, prefix: string): string;
/**
 * Render the shared REST nonce helper in the canonical ttsc layout.
 *
 * @returns TypeScript source for the embedded `resolveRestNonce()` helper.
 */
export declare function formatResolveRestNonceSource(): string;