import { PanelsState } from '../types/panels-state.js';
import { Panels, PanelSizesWithUnit, PanelChildren } from '../types/shared-panel-types.js';
/**
 * Get a sorted list of all the registered child panels.
 */
export declare function getSortedPanelChildren(panels: Panels): PanelChildren;
/** Search for the panel with given name in a panels array. */
export declare function getPanelByName(panels: PanelChildren, name: string): (import("../types/shared-panel-types.js").Panel & {
    name: string;
}) | undefined;
/**
 * Get the index of a named panel in the array of sorted panels.
 * @param sortedPanels  - Array of panels sorted by order.
 * @returns Panel index or -1.
 */
export declare function getPanelIndex(panelName: string, sortedPanels: PanelChildren): number;
/**
 * Get the index of the next panel.
 * @param sortedPanels - Array of panels sorted by order.
 * @returns Panel index or -1.
 */
export declare function getNextPanelIndex(sortedPanels: PanelChildren, currentIndex: number, options?: {
    direction?: 1 | -1;
    loop?: boolean;
    skipNonResizable?: boolean;
}): number;
export declare function getRemovedPanels(prevPanels: PanelChildren, state: PanelsState): string[];
export declare function getAddedPanels(panelKeys: string[], sizes: PanelSizesWithUnit, name: string): string[];