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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 admin_stats(self, option):
 """This is a simple way to get statistics about your system. :param str option: (required), accepted values: ('all', 'repos', 'hooks', 'pages', 'orgs', 'users', 'pulls', 'issues', 'milestones', 'gists', 'comments') :returns: dict """

        stats = {}
        if option.lower() in ('all', 'repos', 'hooks', 'pages', 'orgs',
                              'users', 'pulls', 'issues', 'milestones',
                              'gists', 'comments'):
            url = self._build_url('enterprise', 'stats', option.lower())
            stats = self._json(self._get(url), 200)
        return stats