import { Manifest } from '@prose-reader/shared';
import { Reader } from '../../reader';
import { SpineItem } from '../../spineItem/SpineItem';
import { LayoutEnhancerOutput } from '../layout/layoutEnhancer';
import { Observable } from 'rxjs';
export declare const getPercentageEstimate: (reader: Reader & LayoutEnhancerOutput, currentSpineIndex: number, pageIndex: number, currentPosition: {
    x: number;
    y: number;
}, currentItem: SpineItem, manifest: Manifest) => Observable<number>;