--- /dev/null
+from cryptography.hazmat.backends.interfaces import ScryptBackend
+from cryptography.hazmat.primitives.kdf import KeyDerivationFunction
+
+class Scrypt(KeyDerivationFunction):
+ def __init__(self, salt: bytes, length: int, n: int, r: int, p: int, backend: ScryptBackend | None = ...): ...
+ def derive(self, key_material: bytes) -> bytes: ...
+ def verify(self, key_material: bytes, expected_key: bytes) -> None: ...