import type { DistTags, DownloadPeriod, PackageInfo, PackageMetadata, RegistryDownloads, RegistryKeys, RegistryMetadata, SearchOptions, SearchResults } from './types/index.ts';
import { type RequestInitOptions } from './utils/request.ts';
interface NpmRegistryOptions extends RequestInitOptions {
    /**
     * The base URL of the NPM Registry.
     * @default 'https://registry.npmjs.org'
     */
    registry?: string;
    /**
     * The base URL of the NPM Registry API.
     * @default 'https://api.npmjs.org'
     */
    api?: string;
}
export default class NpmRegistry {
    private registry;
    private api;
    private request;
    constructor({ api, registry, ...request }?: NpmRegistryOptions);
    /**
     * Get the registry metadata
     * @returns The registry metadata
     * @see https://github.com/npm/registry/blob/main/docs/REGISTRY-API.md#get
     */
    getRegistryMetadata(): Promise<RegistryMetadata>;
    /**
     * Get the public signing keys used by the registry.
     * @returns The registry keys
     * @see https://docs.npmjs.com/about-registry-signatures
     */
    getRegistryKeys(): Promise<RegistryKeys>;
    /**
     * Get the download statistics for the registry
     * @param period The download period (e.g., 'last-day', 'last-week', 'last-month', 'last-year', 'yyyy-mm-dd:yyyy-mm-dd')
     * @param packageName The package name (optional)
     * @returns The download statistics
     * @see https://github.com/npm/registry/blob/master/docs/download-counts.md#point-values
     */
    getRegistryDownloads(period: DownloadPeriod, packageName?: string): Promise<RegistryDownloads>;
    /**
     * Get package information from the registry
     * @param packageName The package name
     * @returns The package information
     * @see https://github.com/npm/registry/blob/main/docs/REGISTRY-API.md#getpackage
     */
    getPackage(packageName: string): Promise<PackageInfo>;
    /**
     * Get package metadata for a specific version
     * @param packageName The package name
     * @param version The package version
     * @returns Package metadata
     * @see https://github.com/npm/registry/blob/main/docs/REGISTRY-API.md#getpackageversion
     */
    getPackageVersion(packageName: string, version: string): Promise<PackageMetadata>;
    /**
     * Get the latest version of a package
     * @param packageName The package name
     * @returns The latest version metadata
     */
    getLatestVersion(packageName: string): Promise<PackageMetadata>;
    /**
     * Search for packages in the registry
     * @param query The search query
     * @param options The search options
     * @returns The search results
     * @see https://github.com/npm/registry/blob/main/docs/REGISTRY-API.md#get-v1search
     */
    search(query: string, options?: SearchOptions): Promise<SearchResults>;
    /**
     * Get the dist-tags for a package
     * @param packageName The package name
     * @returns The dist-tags
     */
    getDistTags(packageName: string): Promise<DistTags>;
    /**
     * Download a package tarball
     * @param packageName The package name
     * @param version The package version
     * @returns The tarball as an ArrayBuffer
     */
    downloadTarball(packageName: string, version: string): Promise<ArrayBuffer>;
}
export {};