export interface BundleOptions {
    /** Attach an inline source map to the bundled string (harness/dev use only — never emit
     *  this for pushed/deployed output). Default false. */
    sourcemap?: boolean;
}
export interface BundleOutcome {
    code: string;
    warnings: string[];
}
/**
 * Bundle a `.fn.ts` handler entry file into a self-contained, sandbox-runnable string.
 *
 * @param entryFile absolute path to the `.fn.ts` entry (must be confined to `setDir`).
 * @param setDir the rule set directory imports are confined to.
 * @param opts.sourcemap attach an inline source map (harness/dev only).
 */
export declare function bundleHandler(entryFile: string, setDir: string, opts?: BundleOptions): Promise<BundleOutcome>;