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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _generate_autoscaling_metadata(self, cls, args):
 """ Provides special handling for the autoscaling.Metadata object """

        assert isinstance(args, Mapping)
        init_config = self._create_instance(
            cloudformation.InitConfig,
            args['AWS::CloudFormation::Init']['config'])
        init = self._create_instance(
            cloudformation.Init, {'config': init_config})
        auth = None
        if 'AWS::CloudFormation::Authentication' in args:
            auth_blocks = {}
            for k in args['AWS::CloudFormation::Authentication']:
                auth_blocks[k] = self._create_instance(
                    cloudformation.AuthenticationBlock,
                    args['AWS::CloudFormation::Authentication'][k],
                    k)
            auth = self._create_instance(
                cloudformation.Authentication, auth_blocks)

        return cls(init, auth)