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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 _parse_and_sort_accept_header(accept_header):
 """Parse and sort the accept header items. [('text/*', 1.0), ('application/json', 0.5)] """

    return sorted([_split_into_mimetype_and_priority(x) for x in accept_header.split(',')],
                  key=lambda x: x[1], reverse=True)