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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
_default_backend = None
def default_backend():
global _default_backend
if _default_backend is None:
from cryptography.hazmat.backends.openssl.backend import backend
_default_backend = backend
return _default_backend
def _get_backend(backend):
if backend is None:
return default_backend()
else:
return backend