import TaskManager from '../TaskManager.js';
/**
 * Stops all operations currently running in the given group.
 *
 * This method:
 * - Validates the group exists and is actively running
 * - Iterates over all ops in the group and stops them in parallel
 * - Waits for all stops to complete (or be caught if they fail)
 */
export declare function stopTaskManagerGroupOperations(this: TaskManager, group: string): Promise<void>;