Some information for an object hglasso, hcov, or hbn: (1) The number of observations n and the number of features p. (2) The number of edges in Theta, V, and Z. (3) The indices for hub nodes, and also the number of edges within each hub node.
References
Tan et al. (2014). Learning graphical models with hubs. Journal of Machine Learning Research 15(Oct):3297-3331.