Tags are identifiers that can be assigned to collections and datasets:

Tag attributes

created_at string <date-time> Date-time stamp indicating when the tag was created. READ
id integer <int64> The tag ID. This is assigned automatically.
name string The tag name. This is always lowercase (all tags are converted to lowercase upon creation).
        "created_at": "2017-12-19T04:54:53.652491+00:00",
        "id": 1,
        "name": "agriculture"