Prework

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Description

A bunch of graph-related features gradually crept up, and I need to reorganize them and make sure they are implemented in the most appropriate classes.

• Support allow, exclude, names, and shortcut in network_class, glimpse_class, and inspection_class.
• Remove allow and exclude from visual_class and visnetwork_class.
• Support allow, exclude, names, and shortcut in tar_network(), tar_glimpse(), and tar_visnetwork().