export declare class PathIndex {
    private files;
    private byDocId;
    private syntheticDirs;
    insert(path: string, docId: string): void;
    resolve(path: string): string | null;
    findPath(docId: string): string | null;
    remove(path: string): void;
    markSyntheticDir(path: string): void;
    removeSyntheticDir(path: string): void;
    isFile(path: string): boolean;
    isDirectory(path: string): boolean;
    findAncestorFile(path: string): string | null;
    hasDescendant(path: string): boolean;
    paths(): string[];
    syntheticDirPaths(): string[];
    size(): number;
}
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