from typing import Union, Optional
class SHA256Hash(object):
digest_size: int
block_size: int
oid: str
def __init__(self, data: Optional[Union[bytes, bytearray, memoryview]]=None) -> None: ...
def update(self, data: Union[bytes, bytearray, memoryview]) -> None: ...
def digest(self) -> bytes: ...
def hexdigest(self) -> str: ...
def copy(self) -> SHA256Hash: ...
def new(self, data: Optional[Union[bytes, bytearray, memoryview]]=None) -> SHA256Hash: ...
def new(data: Optional[Union[bytes, bytearray, memoryview]]=None) -> SHA256Hash: ...
digest_size: int
block_size: int