import { Ucan } from 'webnative/dist/ucan';
import { RawPermission } from 'webnative/dist/ucan/permissions';
import { HasDid } from './types';
export declare const requestCosignPermissions: (hasDid: HasDid) => Promise<void>;
export declare const requestCosignPermissionsForDid: (did: string) => Promise<void>;
export declare const rawPermissions: (did: string) => RawPermission;
export declare const findUcan: (did: string) => Ucan | null;
export declare const msTilExpire: (ucan: Ucan) => number;
export declare const withinSpendLimit: (amount: number, ucan: Ucan) => boolean;