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NOTE: All classes and functions in this module are considered private and are
subject to abrupt breaking changes. Please do not use them directly.

To modify the User-Agent header sent by botocore, use one of these
configuration options:
* The ``AWS_SDK_UA_APP_ID`` environment variable.
* The ``sdk_ua_app_id`` setting in the shared AWS config file.
* The ``user_agent_appid`` field in the :py:class:`botocore.config.Config`.
* The ``user_agent_extra`` field in the :py:class:`botocore.config.Config`.

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