It appears that if I check plugin_object_ds_add_file I the object's datastreams in a bag. But, If I leave unchecked, I get nothing. Is this the expected behaviour for that plugin? I thought that plugin was, "one that illustrates how to create an arbitrary file to add to the Bag."
Migrating this (https://github.com/Islandora/islandora_bagit/issues/11) Github ticket over here.