chromium/infra/config/generated/builders/try/mac-official/gn-args.json

{
  "gn_args": {
    "dcheck_always_on": true,
    "is_official_build": true,
    "symbol_level": 1,
    "target_cpu": "arm64",
    "target_os": "mac",
    "use_remoteexec": true,
    "use_siso": true
  }
}