defaultConfObj = { validTypes: ['assets', 'liabilities', 'equity', 'bank', 'incomes', 'expenses'] }

account: { _id: same as name name: string has no validation type: string has array validation error: array of error objects }

generateCreateAccount returns a createAccount function that recibe the account props, validates it's structure and return the account in a valid format for saving with thek _id key.

transaction: { _id: generatedRandomly, date: dateISOString items: item[] }

item: { accountId amount dueDate }