CredentialDriverBase (backends/base.py)

Abstract base class defining CRUD operations for credentials in OpenStack Keystone.

# Source: https://github.com/openstack/keystone | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
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# Copyright 2012 OpenStack Foundation
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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#      http://www.apache.org/licenses/LICENSE-2.0
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import a

... (truncated -- full source via MCP)