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        :type region_name: string
        :param region_name: The name of the region associated with the client.
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        :type api_version: string
        :param api_version: The API version to use.  By default, botocore will
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            to specify this parameter if you want to use a previous API version
            of the client.

        :type use_ssl: boolean
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        :type aws_session_token: string
        :param aws_session_token: The session token to use when creating
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