import type { TSESTree } from '@typescript-eslint/utils';
/**
 * Compares two CSS properties alphabetically.
 * @param firstProperty The first property to compare.
 * @param secondProperty The second property to compare.
 * @returns A number indicating the relative order of the properties (-1, 0, or 1).
 */
export declare const comparePropertiesAlphabetically: (firstProperty: TSESTree.Property, secondProperty: TSESTree.Property) => number;