import { Datasource } from '../datasource';
import type { GetReleasesConfig, ReleaseResult } from '../types';
export declare class Unity3dPackagesDatasource extends Datasource {
    static readonly id = "unity3d-packages";
    static readonly defaultRegistryUrl = "https://packages.unity.com";
    readonly defaultRegistryUrls: string[];
    readonly defaultVersioning = "unity3d-packages";
    constructor();
    getReleases({ packageName, registryUrl, }: GetReleasesConfig): Promise<ReleaseResult | null>;
}