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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 augment_audio_with_sox(path, sample_rate, tempo, gain):
 """ Changes tempo and gain of the recording with sox and loads it. """

    with NamedTemporaryFile(suffix=".wav") as augmented_file:
        augmented_filename = augmented_file.name
        sox_augment_params = ["tempo", "{:.3f}".format(tempo), "gain", "{:.3f}".format(gain)]
        sox_params = "sox \"{}\" -r {} -c 1 -b 16 {} {} >/dev/null 2>&1".format(path, sample_rate,
                                                                            augmented_filename,
                                                                            " ".join(sox_augment_params))
        os.system(sox_params)
        y = load_audio(augmented_filename)
        return y