import type { DigestParticularAlgoOptions } from './types';
declare function unsafeSha1(plaintext: string, options: DigestParticularAlgoOptions & {
    hashFormat: 'hex';
}): Promise<string>;
declare function unsafeSha1(plaintext: string, options: DigestParticularAlgoOptions & {
    hashFormat: 'base64';
}): Promise<string>;
declare function unsafeSha1(plaintext: string, options: DigestParticularAlgoOptions & {
    hashFormat: 'buffer';
}): Promise<ArrayBuffer>;
declare function unsafeSha1(plaintext: string, options: DigestParticularAlgoOptions): Promise<string>;
declare function unsafeSha1(plaintext: string): Promise<string>;
export default unsafeSha1;