Feature to add nodes with no edges in the graph

[srivhash]

Why does Bnlearn not support the addition of nodes into a graph which do not have any incoming or outgoing edges?
The R package seems to have add.node() implemented. Even simple networkx graphs support addition of nodes easily even if they have no incoming or outgoing edges.
I did see it is because the DAG that is implemented is as a list of edges, but this needs to change I believe. For example, if people ran causal discovery methods and had to measure accuracy, precision or recall against a ground truth graph.

[erdogant]

Fair point. It was a design choice. I am going to look into this.