@openstreetmap/id-tagging-schema/data/fields/flag/wikidata.json

The OpenStreetMap tagging model used by the iD editor

{
    "key": "flag:wikidata",
    "keys": [
        "flag:wikidata",
        "flag:wikipedia"
    ],
    "type": "wikidata",
    "label": "Flag Wikidata"
}