from typing import Union, Optional from typing_extensions import Protocol from Crypto.PublicKey.ECC import EccKey class Hash(Protocol): def digest(self) -> bytes: ... class XOF(Protocol): def read(self, len: int) -> bytes: ... def import_public_key(encoded: bytes) -> EccKey: ... def import_private_key(encoded: bytes) -> EccKey: ... class EdDSASigScheme(object): def __init__(self, key: EccKey, context: bytes) -> None: ... def can_sign(self) -> bool: ... def sign(self, msg_or_hash: Union[bytes, Hash, XOF]) -> bytes: ... def verify(self, msg_or_hash: Union[bytes, Hash, XOF], signature: bytes) -> None: ... def new(key: EccKey, mode: str, context: Optional[bytes]=None) -> EdDSASigScheme: ...