/**
 * @license
 * Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at
 * http://polymer.github.io/LICENSE.txt
 * The complete set of authors may be found at
 * http://polymer.github.io/AUTHORS.txt
 * The complete set of contributors may be found at
 * http://polymer.github.io/CONTRIBUTORS.txt
 * Code distributed by Google as part of the polymer project is also
 * subject to an additional IP rights grant found at
 * http://polymer.github.io/PATENTS.txt
 */
import { Document, FeatureKinds } from './document';
import { Feature } from './feature';
import { BaseQueryOptions, Queryable } from './queryable';
import { Warning } from './warning';
export declare type QueryOptions = object & BaseQueryOptions;
/**
 * Represents a queryable interface over all documents in a package/project.
 *
 * Results of queries will include results from all documents in the package, as
 * well as from external dependencies that are transitively imported by
 * documents in the package.
 */
export declare class Package implements Queryable {
    private _documents;
    private _toplevelWarnings;
    static isExternal(path: string): boolean;
    constructor(documents: Iterable<Document>, warnings: Warning[]);
    getByKind<K extends keyof FeatureKinds>(kind: K, options?: QueryOptions): Set<FeatureKinds[K]>;
    getByKind(kind: string, options?: QueryOptions): Set<Feature>;
    getById<K extends keyof FeatureKinds>(kind: K, identifier: string, options?: QueryOptions): Set<FeatureKinds[K]>;
    getById(kind: string, identifier: string, options?: QueryOptions): Set<Feature>;
    getOnlyAtId<K extends keyof FeatureKinds>(kind: K, identifier: string, options?: QueryOptions): FeatureKinds[K] | undefined;
    getOnlyAtId(kind: string, identifier: string, options?: QueryOptions): Feature | undefined;
    /**
     * Get all features for all documents in the project or their imports.
     */
    getFeatures(options?: QueryOptions): Set<Feature>;
    /**
     * Get all warnings in the project.
     */
    getWarnings(options?: QueryOptions): Warning[];
    private _getDocumentQueryOptions(options?);
}