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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 _cut_hypernodes(hypergraph):
 """ Return the cut-nodes of the given hypergraph. @type hypergraph: hypergraph @param hypergraph: Hypergraph @rtype: list @return: List of cut-nodes. """

    nodes_ = cut_nodes(hypergraph.graph)
    nodes = []
    
    for each in nodes_:
        if (each[1] == 'n'):
            nodes.append(each[0])
    
    return nodes