import type { PreparedVersion } from './types';
/**
 * Sorts cluster versions according to the following rules:
 * 1. First by majorIndex in ascending order (lower index first)
 * - In single-cluster versions higher version numbers typically have lower indices (e.g., v3.0.0: index 0, v2.0.0: index 1, v1.0.0: index 2)
 * - In multi-cluster version indices may be provided by backend with no specific rule, but we use the same sorting for consistency
 * - Versions with undefined majorIndex come last
 * 2. Then by minorIndex in ascending order (lower index first) when majorIndex is the same
 * - Higher minor versions typically have lower indices
 * - Versions with undefined minorIndex come last within their major group
 * 3. Finally by version string hashCode in descending order when both indices are the same
 * - Higher hash values come first
 *
 * The function creates a copy of the input array to avoid modifying the original.
 * @param versions - Array of prepared cluster versions to sort
 * @returns A new sorted array of cluster versions
 */
export declare function sortVersions(versions: PreparedVersion[]): PreparedVersion[];