import { Entity } from '../mixins/entity.js';
import { Maybe } from '../../util.js';
import { ManifestItem } from './manifest-item.js';
import { SpineItem } from './spine-item.js';
declare const Spine_base: {
    new (...args: any[]): {
        id(): Maybe<string>;
        _node: Node;
        _context: Entity;
        _select(expression: string): Maybe<import("xpath").SelectedValue>;
        _selectAll(expression: string): import("xpath").SelectedValue[];
        _resolve(expression: string): Maybe<string>;
        _resolve<T>(expression: string, constructor: import("../mixins/constructor.js").Constructor<T>): Maybe<T>;
        _resolveAll(expression: string): string[];
        _resolveAll<T_1>(expression: string, constructor: import("../mixins/constructor.js").Constructor<T_1>): T_1[];
    };
} & typeof Entity;
export declare class Spine extends Spine_base {
    pageProgressionDirection(): Maybe<string>;
    toc(): Maybe<ManifestItem>;
    itemref({ id, anyProperties, allProperties, onlyProperties, linear, }?: {
        id?: string;
        anyProperties?: string[];
        allProperties?: string[];
        onlyProperties?: string[];
        linear?: boolean;
    }): Maybe<SpineItem>;
    itemrefs({ ids, anyProperties, allProperties, onlyProperties, linear, }?: {
        ids?: string[];
        anyProperties?: string[];
        allProperties?: string[];
        onlyProperties?: string[];
        linear?: boolean;
    }): SpineItem[];
}
export {};