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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 del_node(self, node):
 """ Delete a given node from the hypergraph. @type node: node @param node: Node identifier. """

        if self.has_node(node):
            for e in self.node_links[node]:
                self.edge_links[e].remove(node)

            self.node_links.pop(node)
            self.graph.del_node((node,'n'))