/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
import type { CanonicalPath, FileMetadata, FileSystemListener, ReadonlyFileSystemChanges } from '../types';
export declare class FileSystemChangeAggregator implements FileSystemListener {
    #private;
    directoryAdded(canonicalPath: CanonicalPath): void;
    directoryRemoved(canonicalPath: CanonicalPath): void;
    fileAdded(canonicalPath: CanonicalPath, data: FileMetadata): void;
    fileModified(canonicalPath: CanonicalPath, oldData: FileMetadata, newData: FileMetadata): void;
    fileRemoved(canonicalPath: CanonicalPath, data: FileMetadata): void;
    getSize(): number;
    getView(): ReadonlyFileSystemChanges<FileMetadata>;
    getMappedView<T>(metadataMapFn: (metadata: FileMetadata) => T): ReadonlyFileSystemChanges<T>;
}