import type { UserConfig } from 'tsdown';
/**
 * Platform build contract for every @platform-modules/* module.
 *
 * One place that fixes: ESM-only output, ES2022 target, emitted .d.ts,
 * tree-shaken bundles (matches `sideEffects: false`), clean dist per build.
 * Consumers pass only what differs per module:
 *   - `entry`       the subpath entrypoints (one for leaf modules, many for fan-out)
 *   - `neverBundle` peers + workspace deps the consumer must bring
 *
 * `deps.neverBundle` is set only when provided. Consumed raw (.ts) by
 * tsdown's config loader, so no tooling prebuild is required.
 */
export declare function tsdownBase(options: {
    entry: string[];
    neverBundle?: string[];
}): UserConfig;