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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 clean_out_dir(directory):
 """ Delete all the files and subdirectories in a directory. """

    if not isinstance(directory, path):
        directory = path(directory)
    for file_path in directory.files():
        file_path.remove()
    for dir_path in directory.dirs():
        dir_path.rmtree()