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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 getInterfaceAddresses(self, node, interface):
        '''
        Return the Ethernet and IP+mask addresses assigned to a
        given interface on a node.
        '''
        intf = self.getNode(node)['nodeobj'].getInterface(interface)
        return intf.ethaddr,intf.ipaddr,intf.netmask