def delete_key_pair(self, key_name):
        params = {'KeyName':key_name}
        return self.get_status('DeleteKeyPair', params, verb='POST')
Test all possible combinations of the prefit parameter.
dataset/ETHPy150Open darcyliu/storyboard/boto/ec2/connection.py/EC2Connection.delete_key_pair--crossover with--dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/feature_selection/tests/test_from_model.py/test_prefit