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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 ethernet_interfaces(self):
 """Provide reference to EthernetInterfacesCollection instance"""

        return ethernet_interface.EthernetInterfaceCollection(
            self._conn,
            self._get_hpe_sub_resource_collection_path('EthernetInterfaces'),
            redfish_version=self.redfish_version)