def get_all_notebook_files():
    """
    Get all example notebook files' path and return them as a list.

    Returns:
        list of str. A list of notebook file paths. 
    """

    root_path = os.path.dirname(sys.path[0])
    examples_path = os.path.join(root_path, "examples")
    if not os.path.exists(examples_path):
        raise ValueError("Cannot find examples file path: {}".format(examples_path))

    files = [f for f in glob.glob(os.path.join(examples_path, "*/*.ipynb"), recursive=True)]
    return files

    Get all example notebook files' path and return them as a list.

    Returns:
        list of str. A list of notebook file paths. 
    
tools/remove_pixelserver.py