import { Contents } from '@jupyterlab/services';
/**
 * The canonical path used by the root of the in-memory load-state map.
 * The tree itself does not surface a path for its root.
 */
export declare const ROOT_LOAD_KEY = "";
/**
 * Convert a {@link Contents.IModel} into the canonical path expected by
 * `@pierre/trees`. Directories carry a trailing slash so empty directories can
 * still be represented in the flat path list.
 */
export declare function toCanonicalPath(child: Contents.IModel): string;
/**
 * Strip the trailing slash that `@pierre/trees` uses for canonical directory
 * paths so the value can be sent to the Jupyter contents API.
 */
export declare function toServerPath(canonicalPath: string): string;
interface IListedDirectory {
    /**
     * Canonical paths for every immediate child of the requested directory.
     */
    paths: string[];
    /**
     * Subset of {@link IListedDirectory.paths} that are directories.
     */
    subdirectories: string[];
}
/**
 * Fetch the immediate children of a directory through the Jupyter contents API
 * and return them as canonical `@pierre/trees` paths.
 */
export declare function listDirectory(manager: Contents.IManager, serverPath: string): Promise<IListedDirectory>;
export {};