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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 RemoveForwardedIp(self, address, interface):
 """Delete an IP address on the network interface. Args: address: string, the IP address to configure. interface: string, the output device to use. """

    ip = netaddr.IPNetwork(address)
    self._RunIfconfig(args=[interface, '-alias', str(ip.ip)])