import type { IframeMessenger } from "./iframe-messenger.js";
/**
 * Interact with user's selection (i.e. shift-clicked elements in the scene)
 *
 * @remarks
 * Available via {@link auto.Forma | Forma}.{@link index.EmbeddedViewSdk.selection | selection}.
 */
export declare class SelectionApi {
    #private;
    /** @hidden */
    constructor(iframeMessenger: IframeMessenger);
    /**
     * Get selected elements.
     *
     * @returns List of paths to elements currently selected in the scene.
     *
     * @example
     * // Fetch all paths to selected elements in the current proposal.
     * // Count how many of them are buildings.
     * const selectedPaths = await Forma.selection.getSelection()
     * const buildingPaths = await Forma.geometry.getPathsByCategory({ category: "buildings" })
     * const selectedBuildingPaths = selectedPaths.filter(path => buildingPaths.includes(path))
     * const numberOfSelectedBuildings = selectedBuildingPaths.length
     */
    getSelection(): Promise<string[]>;
    /**
     * Subscribe to selection changes.
     *
     * @example
     * const { unsubscribe } = await Forma.selection.subscribe(({ paths }) => {
     *  console.log(paths)
     * });
     *
     * @param callback event handler for each selection change
     * @returns { unsubscribe: () => void } object with an `unsubscribe` method to stop listening
     */
    subscribe(callback: (payload: {
        paths: string[];
    }) => void): Promise<{
        unsubscribe: () => void;
    }>;
}