command

var (
	ErrEmptyName                        = errors.New("name cannot be empty")
	ErrInvalidCharacterInName           = errors.New("name contains an invalid character")
	ErrEmptyBankAccountNumber           = errors.New("bank account number cannot be empty")
	ErrInvalidDashedBankAccountNumber   = errors.New("bank account number in dashed format is malformed")
	ErrBankAccountNumberNotNumeric      = errors.New("bank account number contains non numeric characters")
	ErrBankAccountNumberBankCodeInvalid = errors.New("bank account number contains an invalid bank code")
	ErrBankAccountNumberTooShort        = errors.New("bank account number is too short")
	ErrBankAccountNumberTooLong         = errors.New("bank account number is too long")
	ErrBankAccountNumberChecksumInvalid = errors.New("bank account number contains an invalid checksum")
	ErrEmptyCity                        = errors.New("city cannot be empty")
	ErrInvalidCharacterInCity           = errors.New("city contains an invalid character")
)