interface PurlObject {
    name: string;
    namespace?: string | undefined;
    qualifiers?: Record<string, string> | undefined;
    subpath?: string | undefined;
    type?: string | undefined;
    version?: string | undefined;
}
/**
 * Validate Swift package URL.
 * Swift packages require both namespace and version. Name and namespace must
 * not contain injection characters.
 */
export declare function validate(purl: PurlObject, throws: boolean): boolean;
export {};