{
    "zone": {
        "_id": "<string> [ <class> ]",
        "_mapbody": {
            "type": {
                "_grammar": "stub"
            },
            "allow-query": {
                "_grammar": "{ <address_match_element>; ... }"
            },
            "allow-query-on": {
                "_grammar": "{ <address_match_element>; ... }"
            },
            "check-names": {
                "_grammar": "( fail | warn | ignore )"
            },
            "database": {
                "_grammar": "<string>"
            },
            "file": {
                "_grammar": "<quoted_string>"
            },
            "forward": {
                "_grammar": "( first | only )"
            },
            "forwarders": {
                "_grammar": "[ port <integer> ] [ tls <string> ] { ( <ipv4_address> | <ipv6_address> ) [ port <integer> ] [ tls <string> ]; ... }"
            },
            "masterfile-format": {
                "_grammar": "( raw | text )"
            },
            "masterfile-style": {
                "_grammar": "( full | relative )"
            },
            "max-records": {
                "_grammar": "<integer>"
            },
            "max-records-per-type": {
                "_grammar": "<integer>"
            },
            "max-refresh-time": {
                "_grammar": "<integer>"
            },
            "max-retry-time": {
                "_grammar": "<integer>"
            },
            "max-transfer-idle-in": {
                "_grammar": "<integer>"
            },
            "max-transfer-time-in": {
                "_grammar": "<integer>"
            },
            "max-types-per-name": {
                "_grammar": "<integer>"
            },
            "min-refresh-time": {
                "_grammar": "<integer>"
            },
            "min-retry-time": {
                "_grammar": "<integer>"
            },
            "min-transfer-rate-in": {
                "_grammar": "<integer> <integer>"
            },
            "multi-master": {
                "_grammar": "<boolean>"
            },
            "primaries": {
                "_grammar": "[ port <integer> ] [ source ( <ipv4_address> | * ) ] [ source-v6 ( <ipv6_address> | * ) ] { ( <server-list> | <ipv4_address> [ port <integer> ] | <ipv6_address> [ port <integer> ] ) [ key <string> ] [ tls <string> ]; ... }"
            },
            "template": {
                "_grammar": "<string>"
            },
            "transfer-source": {
                "_grammar": "( <ipv4_address> | * )"
            },
            "transfer-source-v6": {
                "_grammar": "( <ipv6_address> | * )"
            },
            "zone-statistics": {
                "_grammar": "( full | terse | none | <boolean> )"
            }
        }
    }
}