diag property

Implementation

@override
late final Diag diag = createDiag(
  // Offloaded to a helper isolate (long + contended, like dial).
  pingFn: (ip, timeout, type) =>
      offloadDiagPing(ip: ip, timeout: timeout, pingType: type.name),
  metricsFn: _worker.diagMetrics,
  derpMapFn: _worker.diagDERPMap,
  checkUpdateFn: _worker.diagCheckUpdate,
  nodeStateFn: _worker.debugNodeState,
);