export interface WalkEntry {
    name: string;
    path: string;
}
export interface WalkOptions {
    onEnter?: (dir: WalkEntry) => (() => void) | false | void;
    onFile?: (file: WalkEntry) => void;
    onDir?: () => boolean;
    maxDepth?: number;
}
export type Walker = (options: WalkOptions) => Promise<void>;
export declare function createFSWalker(dir: string): Walker;
export type TestFileTree = [string, (string | TestFileTree)[]];
export declare function createTestWalker(dir: TestFileTree): Walker;