import { CompareDirection } from './types';
/**
 * Compare boolean values.
 * @param {boolean} a The first value.
 * @param {boolean} b The second value.
 * @param {CompareDirection} dir The direction to compare.
 * @returns {number} 0 if values are equal.
 */
export declare const compareBooleans: (a: boolean, b: boolean, dir?: CompareDirection) => 0 | 1 | -1;
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