Type '{ institutionIds: string[]; accessValidForDays: number; normalizeAccount(account: DetailedAccountWithInstitution): { account_id: string; institution: Institution; ... 4 more ...; type: string; }; normalizeTransaction(transaction: Transaction, _booked: boolean): { ...; } | { ...; }; calculateStartingBalance(sortedTra...' is not assignable to type 'IBank'.

No value exists in scope for the shorthand property 'Null'. Either declare one or provide an initializer.