{
  "nftables": [
    {
      "metainfo": {
        "version": "VERSION",
        "release_name": "RELEASE_NAME",
        "json_schema_version": 1
      }
    },
    {
      "table": {
        "family": "ip",
        "name": "x",
        "handle": 0
      }
    },
    {
      "chain": {
        "family": "ip",
        "table": "x",
        "name": "foo",
        "handle": 0
      }
    },
    {
      "rule": {
        "family": "ip",
        "table": "x",
        "chain": "foo",
        "handle": 0,
        "expr": [
          {
            "accept": null
          }
        ]
      }
    },
    {
      "rule": {
        "family": "ip",
        "table": "x",
        "chain": "foo",
        "handle": 0,
        "expr": [
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "icmp",
                  "field": "type"
                }
              },
              "right": {
                "set": [
                  "echo-reply",
                  "echo-request"
                ]
              }
            }
          },
          {
            "match": {
              "op": "==",
              "left": {
                "payload": {
                  "protocol": "icmp",
                  "field": "id"
                }
              },
              "right": 42
            }
          }
        ]
      }
    }
  ]
}