import { ReaderSettingsManager } from '../../settings/ReaderSettingsManager';
import { Viewport } from '../../viewport/Viewport';
import { SpineItemsManager } from '../SpineItemsManager';
import { SpineLayout } from '../SpineLayout';
import { SpinePosition, UnboundSpinePosition } from '../types';
export declare const getVisibleSpineItemsFromPosition: ({ position, threshold, restrictToScreen, spineItemsManager, spineLayout, useAbsoluteViewport, viewport, }: {
    position: SpinePosition | UnboundSpinePosition;
    threshold: {
        type: "percentage";
        value: number;
    } | {
        type: "pixels";
        value: number;
    };
    restrictToScreen?: boolean;
    spineItemsManager: SpineItemsManager;
    settings: ReaderSettingsManager;
    spineLayout: SpineLayout;
    useAbsoluteViewport?: boolean;
    viewport: Viewport;
}) => {
    beginIndex: number;
    endIndex: number;
} | undefined;