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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 add_library_path(path: str) -> bool: """ Adds the path to the Python system path if not already added and the path exists. :param path: The path to add to the system paths :return: Whether or not the path was added. Only returns False if the path was not added because it doesn't exist """


    if not os.path.exists(path):
        return False

    if path not in sys.path:
        sys.path.append(path)

    return True