@openstreetmap/id-tagging-schema/data/presets/barrier/chain.json

The OpenStreetMap tagging model used by the iD editor

{
    "icon": "temaki-rope_fence",
    "fields": [
        "access",
        "locked"
    ],
    "geometry": [
        "vertex",
        "line"
    ],
    "tags": {
        "barrier": "chain"
    },
    "name": "Chain"
}