interface PurlObject {
    name: string;
    namespace?: string | undefined;
    qualifiers?: Record<string, string> | undefined;
    subpath?: string | undefined;
    type?: string | undefined;
    version?: string | undefined;
}
/**
 * Validate SWID package URL.
 * SWID requires a tag_id qualifier that must not be empty.
 * If tag_id is a GUID, it must be lowercase.
 */
export declare function validate(purl: PurlObject, throws: boolean): boolean;
export {};