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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 _find_node_by_indices(self, point):
 """"Find the GSNode that is refered to by the given indices. See GSNode::_indices() """

        path_index, node_index = point
        path = self.paths[int(path_index)]
        node = path.nodes[int(node_index)]
        return node