import { ComputedRef, InjectionKey, MaybeRefOrGetter, Ref } from 'vue';
export declare const cascadePanelsKey: InjectionKey<UseCascadePanels>;
export type CascadePanelId = string | symbol | number;
export type CascadeState = Record<CascadePanelId, boolean>;
export type CascadePanel = {
    id: CascadePanelId;
    level?: number;
};
export type UseCascadePanels = {
    openPanels: ComputedRef<CascadePanel[]>;
    panels: Ref<CascadePanel[]>;
    state: Readonly<CascadeState>;
    isOpen: Ref<boolean>;
    getPanelById: (id: CascadePanelId) => CascadePanel | undefined;
    getPanelIsOpenById: (id: CascadePanelId) => boolean;
    openPanelById: (id: CascadePanelId) => void;
    closePanelById: (id: CascadePanelId) => void;
    togglePanelById: (id: CascadePanelId) => void;
    closeAll: () => void;
    close: () => void;
    open: () => void;
    toggle: () => void;
};
/**
 * Provides a mechanism to manage a cascade of panels, each identified by a unique id, with operations to open, close, and toggle their states.
 *
 * @param {CascadePanel[]} panelsRefOrGetter - Initial array of panel definitions.
 * @returns {UseCascadePanels} - An object including:
 *   - `panels`: Ref array of panel definitions.
 *   - `openPanels`: Computed array of open panels.
 *   - `state`: Readonly object tracking the open/close state of each panel by id.
 *   - `isOpen`: Ref boolean indicating whether the cascade panel group is open.
 *   - `getPanelIsOpenById`: Function to get the open state of a panel by id.
 *   - `getPanelById`: Function to get a panel by id.
 *   - `openPanelById`: Function to open a panel by id.
 *   - `closePanelById`: Function to close a panel by id.
 *   - `togglePanelById`: Function to toggle the open state of a panel by id.
 *   - `closeAll`: Function to close all panels.
 *   - `close`, `open`, `toggle`: Functions to control the overall cascade state.
 */
export declare function useCascadePanels(panelsRefOrGetter?: MaybeRefOrGetter<CascadePanel[]>): UseCascadePanels;