/**
 * Parse checkbox tasks with AIWS-specific control markers.
 *
 * Supported markers:
 * - `[optional]`: unchecked optional tasks do not block archive/finish.
 * - `[n/a: ...]` / `[na: ...]` / `[not-applicable: ...]`: task is treated as closed.
 *
 * Returned `total/done/unchecked` are the effective gate counts. Optional open
 * tasks are reported separately via `optionalUnchecked`.
 *
 * @param {string} text
 */
export declare function checkboxStats(text: string): {
    total: number;
    done: number;
    unchecked: number;
    hasCheckboxes: boolean;
    totalAll: number;
    doneAll: number;
    uncheckedAll: number;
    optionalTotal: number;
    optionalUnchecked: number;
    naCount: number;
};