import { VersioningApi } from '../common';
export declare const id = "pep440";
export declare const displayName = "PEP440";
export declare const urls: string[];
export declare const supportsRanges = true;
export declare const supportedRangeStrategies: string[];
declare const matches: any;
export declare const isValid: (input: string) => string;
export declare const isSingleVersion: (constraint: string) => string;
export { matches };
export declare const api: VersioningApi;
export default api;