examples/fidl/hlcpp/client_sync/client.cmx

{
    "include": [
        "syslog/client.shard.cmx"
    ],
    "program": {
        "binary": "bin/fidl_echo_hlcpp_client_sync"
    },
    "sandbox": {
        "services": [
            "fuchsia.examples.Echo"
        ]
    }
}