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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 suppress_deg_one_node(self, to_par_edge, nd_id, to_child_edge):
 """Deletes to_par_edge and nd_id. To be used when nd_id is an out-degree= 1 node"""

        # circumvent the node with nd_id
        to_child_edge_id = to_child_edge['@id']
        par = to_par_edge['@source']
        self._edge_by_source[par][to_child_edge_id] = to_child_edge
        to_child_edge['@source'] = par
        # make it a tip...
        del self._edge_by_source[nd_id]
        # delete it
        self._del_tip(nd_id)