def delete_files(files_list):
    for file_path in files_list:
        if os.path.isdir(file_path):
            shutil.rmtree(file_path)
        else:
            os.remove(file_path)
Generate validation for the challenge.
dataset/ETHPy150Open gferreira/hTools2/Lib/hTools2/modules/fileutils.py/delete_files--crossover with--dataset/ETHPy150Open letsencrypt/letsencrypt/acme/acme/challenges.py/KeyAuthorizationChallenge.validation