import type { Comparator } from './compare.ts';
/**
 * The order of attributes within a single resource definition (a direct child
 * of the root `Resources` section). Listed attributes come first in this order;
 * any other key is placed after them alphabetically.
 *
 * Only `Type` and `Properties` reflect a firm convention. The remaining resource
 * attributes (`Condition`, `DependsOn`, the policies, `Metadata`) have no
 * AWS-blessed order — this constant is the single place to adjust them.
 *
 * @see https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/resources-section-structure.html
 */
export declare const RESOURCE_ATTRIBUTE_ORDER: readonly string[];
/**
 * Comparator for the keys of a resource definition object. Recognized
 * attributes are ordered by their position in {@link RESOURCE_ATTRIBUTE_ORDER};
 * any other key is placed after them and sorted alphabetically among the rest.
 */
export declare const compareResourceAttributes: Comparator;
/**
 * Builds a comparator for the logical IDs of the root `Resources` object that
 * groups resources by their `Type` value and orders alphabetically by logical ID
 * within each group. Both keys use the deterministic {@link compareKeys}.
 *
 * A resource whose `Type` is missing or not a string is treated as having an
 * empty-string type, so it sorts deterministically (before any real type) and is
 * never dropped or able to throw.
 */
export declare function compareResourcesByType(resources: Readonly<Record<string, unknown>>): Comparator;