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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 loadNetworkbyName(self, name, callback=None, errback=None):
 """ Load an existing Network by name into a high level Network object :param str name: Name of an existing Network """

        import ns1.ipam
        network = ns1.ipam.Network(self.config, name=name)
        return network.load(callback=callback, errback=errback)