class NameTooShortError(Exception):
    pass


class MustContainAtSymbolError(NameTooShortError):
    pass


class InvalidDomainError(NameTooShortError):
    pass

d835ae943314162a51cf3d5b05dde30daec0522a
<mask token>

<mask token>


class InvalidDomainError(NameTooShortError):
    pass

<mask token>


class MustContainAtSymbolError(NameTooShortError):
    pass


class InvalidDomainError(NameTooShortError):
    pass

class NameTooShortError(Exception):
    pass


class MustContainAtSymbolError(NameTooShortError):
    pass


class InvalidDomainError(NameTooShortError):
    pass
