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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 author_info(name, contact=None, public_key=None):
 """Easy object-oriented representation of contributor info. :param str name: The contributor´s name. :param str contact: The contributor´s email address or contact information, if given. :param str public_key: The contributor´s public keyid, if given. """

    return Storage(name=name, contact=contact, public_key=public_key)