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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 volumes(self):
 """This property prepares the list of volumes :return a list of volumes. """

        return sys_volumes.VolumeCollection(
            self._conn, utils.get_subresource_path_by(self, 'Volumes'),
            redfish_version=self.redfish_version)