enum PaymentMethodType {
  CASH
  CARD
  BANK
  CHECK
  OTHER
}

enum PurchaseReceiptStatus {
  UNPAID
  PARTIALLY_PAID
  PAID
}

enum SalesInvoiceType {
  GOOD
  SERVICE
}

enum UnitType {
  COUNT
  GRAM
  KILOGRAM
  LITER
  METER
  HOUR
}