import { Rule, XastParent as Parent, SelectState, Element } from './types.js';
/**
 * @param {Rule} query
 * @param {Element} element
 * @param {number|null} index
 * @param {Parent|null} parent
 * @param {SelectState} state
 * @returns {boolean}
 */
export declare function pseudo(query: Rule, element: Element, index: number | null, parent: Parent | null, state: SelectState): boolean;
export declare namespace pseudo {
    var needsIndex: string[];
}
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