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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 clear_calibrations():
 """ Delete all calibration files for labware. This includes deleting tip-length data for tipracks. """

    calibration_path = CONFIG['labware_calibration_offsets_dir_v4']
    try:
        targets = [
            f for f in calibration_path.iterdir() if f.suffix == '.json']
        for target in targets:
            target.unlink()
    except FileNotFoundError:
        pass