def __init__(self, f):
self.f = f
self.sha1 = make_sha("")
def __init__(self):
self.sha1 = make_sha()
def __init__(self, f: IO) -> None:
self.f = f
self.sha1 = make_sha(b"")
def __init__(self, f):
self.f = f
self.sha1 = make_sha(b"")
def __init__(self):
self.sha1 = make_sha()
