import { JWTPayload } from 'jose';
export type SignOptions = {
    readonly payload: JWTPayload;
    readonly privateKey: string;
    readonly keyId?: string;
};
export declare function sign({ payload, privateKey, keyId }: SignOptions): Promise<string>;
export type SignBlobOptions = {
    readonly serviceAccountId: string;
    readonly accessToken: string;
    readonly payload: JWTPayload;
};
export declare function signBlob({ payload, serviceAccountId, accessToken }: SignBlobOptions): Promise<string>;