|
class DemandError(Exception):
|
|
pass
|
|
|
|
class ModelNotExistError(Exception):
|
|
pass
|
|
|
|
class UserError(Exception):
|
|
pass
|
|
|
|
class UserNotExistError(UserError):
|
|
pass
|
|
|
|
class UserPasswordError(UserError):
|
|
pass
|
|
|
|
class ProviderError(Exception):
|
|
pass
|
|
|
|
class ProviderNotExistError(ProviderError):
|
|
pass |