/**
 * Subname-depth display helper, used by `src/deploy.ts` to describe how
 * deeply nested a parsed subname is.
 *
 * Depth is observed, not gated (#1449): `src/dotns.ts`'s `parseDomainName`
 * accepts any depth, and there is no cap or override flag anywhere in
 * bulletin-deploy. This module is only the pure arithmetic for turning a
 * label count into a "levels of nesting" figure for a deploy-time console
 * notice and telemetry attribute — it carries no policy of its own.
 *
 * Zero imports, zero chain dependencies — kept trivial so it stays cheap to
 * import from both `src/deploy.ts` and any pure test.
 */
/**
 * How many "levels" of subname nesting `labelsBeforeTld` labels represents
 * (e.g. `worker.app.supafaust.<tld>`'s 3 labels are 2 levels of nesting
 * under the leaf sublabel; `worker.app.<tld>`'s 2 labels are 1, the
 * ordinary case).
 */
declare function subnameNestingLevels(labelsBeforeTld: number): number;

export { subnameNestingLevels };