Storage.Implementation
type Implementation = {
KEYS: {
ACCOUNT_UCAN: string;
CID_LOG: string;
UCANS: string;
SESSION: string;
}; getItem: <T>(key: string) => Promise<T | null>;
setItem: <T>(key: string, val: T) => Promise<T>;
removeItem: (key: string) => Promise<void>;
clear: () => Promise<void>;
};