runtime/dart/meta/dart.cmx

{
    "program": {
        "data": "data"
    },
    "sandbox": {
        "features": [
            "root-ssl-certificates",
            "system-temp"
        ],
        "services": [
            "fuchsia.net.LegacySocketProvider",
            "fuchsia.timezone.Timezone",
            "fuchsia.tracelink.Registry"
        ]
    }
}