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File: //usr/lib/python3.6/site-packages/botocore/__pycache__/credentials.cpython-36.pyc
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        The frozen credentials returned from this method should be used
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            client for the call to AssumeRole.

        :type role_arn: str
        :param role_arn: The ARN of the role to be assumed.

        :type extra_args: dict
        :param extra_args: Any additional arguments to add to the assume
            role request using the format of the botocore operation.
            Possible keys include, but may not be limited to,
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        :type mfa_prompter: callable
        :param mfa_prompter: A callable that returns input provided by the
            user (i.e raw_input, getpass.getpass, etc.).

        :type cache: dict
        :param cache: An object that supports ``__getitem__``,
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        :param web_identity_token_loader: A callable that takes no arguments
        and returns a web identity token str.

        :type role_arn: str
        :param role_arn: The ARN of the role to be assumed.

        :type extra_args: dict
        :param extra_args: Any additional arguments to add to the assume
            role request using the format of the botocore operation.
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