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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 pdf_saver(filehandle, *args, **kwargs):
    "Uses werkzeug.FileStorage instance to save the converted image."
    fullpath = get_save_path(filehandle.filename)
    filehandle.save(fullpath, buffer_size=kwargs.get('buffer_size', 16384))