export declare function useDownload(): {
    file: (url: string, params?: string, contentType?: string, filename?: string) => void;
    url: (urlString: string, filename?: string) => void;
    blob: (blobData: Blob, filename?: string) => void;
    base64: (base64String: string, filename: string) => void;
    loading: import("vue").Ref<boolean, boolean>;
    image: (urlString: string) => void;
};