message: [XLA:Python] Fix crash in outfeed_receiver.
diff: @@ -52,7 +52,7 @@ class OutfeedReceiverForPython {
  std::shared_ptr<Literal> literal) {
  this->Callback(device, consumer_id, std::move(literal));
  };
  - std::vector<PjRtClient*> client_ptrs(clients.size());
  + std::vector<PjRtClient*> client_ptrs(clients_.size());
  absl::c_transform(clients_, client_ptrs.begin(),
  [](const std::shared_ptr<PyClient>& client) {
  return client->pjrt_client();
  