def set_password(self, user: IUser, password: str):
"""Hash a password for persistent storage.
Uses password hasher registered in :py:meth:`websauna.system.Initializer.configure_password`.
:param user: User object.
:param password: User password.
"""
hasher = self.registry.getUtility(IPasswordHasher)
hashed = hasher.hash_password(password)
user.hashed_password = hashed
