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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 coauthors(corpus, min_weight=1, edge_attrs=['ayjid', 'date'], **kwargs):
 """ A graph describing joint authorship in ``corpus``. """

    return cooccurrence(corpus, 'authors', min_weight=min_weight,
                        edge_attrs=edge_attrs, **kwargs)