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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 all_dbs(self):
 """ Retrieves a list of all database names for the current client. :returns: List of database names for the client """

        url = '/'.join((self.server_url, '_all_dbs'))
        resp = self.r_session.get(url)
        resp.raise_for_status()
        return response_to_json_dict(resp)