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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 _check_img_lib():
 """Utility to search for imageio or PIL"""

    # Import imageio or PIL
    imageio = PIL = None
    try:
        import imageio
    except ImportError:
        try:
            import PIL.Image
        except ImportError:
            pass
    return imageio, PIL