import { IFileSystem } from '@dolittle/tooling.common.files';
import { ICanDiscoverLocalPackages, DiscoveredToolingPackage, ToolingPackage } from '../internal';
/**
 * Represents an implementation of {ICanDiscoverLocalPackages} that discover locally installed npm packages
 *
 * @export
 * @class LocalNpmPackageDiscoverer
 * @implements {ICanDiscoverLocalPackages}
 */
export declare class LocalNpmPackageDiscoverer implements ICanDiscoverLocalPackages {
    private _fileSystem;
    private _nodeModulesFolder;
    private static packageName;
    /**
     * Instantiates an instance of {LocalNpmPackageDiscoverer}.
     * @param {IFileSystem} _fileSystem
     * @param {string} _nodeModulesFolder
     */
    constructor(_fileSystem: IFileSystem, _nodeModulesFolder: string);
    discover(folder?: string, check?: (toolingPackage: ToolingPackage) => boolean): Promise<DiscoveredToolingPackage[]>;
    private getPackages;
    private searchDirectoryForPackages;
    private throwIfDuplicatePackages;
}