import { Ctx } from '../ctx/base';
export type UploadSidebarsHook = {
    /**
     * Use this function to declare new sidebar to be shown when the user opens
     * up an asset in the Media Area
     *
     * @tag sidebarPanels
     */
    uploadSidebars: (ctx: UploadSidebarsCtx) => UploadSidebar[];
};
export type UploadSidebarsCtx = Ctx;
/**
 * An object expressing a sidebar to be shown when the user opens
 * up an asset in the Media Area
 *
 * @see {isUploadSidebar}
 */
export type UploadSidebar = {
    /**
     * ID of the sidebar. Will be the first argument for the
     * `renderUploadSidebar` function
     */
    id: string;
    /** Label to be shown on the collapsible sidebar handle */
    label: string;
    /**
     * An arbitrary configuration object that will be passed as the `parameters`
     * property of the second argument of the `renderUploadSidebar` function
     */
    parameters?: Record<string, unknown>;
    /**
     * If multiple sidebars specify the same `placement`, they will be sorted by
     * ascending `rank`. If you want to specify an explicit value for `rank`, make
     * sure to offer a way for final users to customize it inside the plugin's
     * settings form, otherwise the hardcoded value you choose might clash with
     * the one of another plugin!
     */
    rank?: number;
    /** The preferred width for the sidebar */
    preferredWidth?: number;
};
export declare function isUploadSidebar(value: unknown): value is UploadSidebar;
export declare function isReturnTypeOfUploadSidebarsHook(value: unknown): value is UploadSidebar[];