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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
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