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from enum import IntFlag
from uuid import UUID
from pydantic import BaseModel
class UserPermission(IntFlag):
"""The permissions a user has."""
VIEW_VOUCHERS = 2**0
ISSUE_VOUCHERS = 2**1
REVOKE_VOUCHERS = 2**1
MANAGE_USERS = 2**2
VIEW_TEMPLATES = 2**3
UPDATE_TEMPLATES = 2**4
class User(BaseModel):
"""An user authenticated with the backend."""
id: UUID
permissions: int
def has_permission(self, permission: UserPermission) -> bool:
"""Whether the user has the given permission."""
return (self.permissions & permission) == permission
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