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…hods to static analysis (#53986) <!-- Thank you for your contribution! Please review https://github.com/ray-project/ray/blob/master/CONTRIBUTING.rst before opening a pull request. --> <!-- Please add a reviewer to the assignee section when you create a PR. If you don't have the access to it, we will shortly find a reviewer and assign them to your PR. --> ## Why are these changes needed? Changes in this PR are inspired by https://github.com/zen-xu/sunray Calling `remote()` on an Actor class incorrectly returns an `ObjectRef[...]` type. Also, the Actor class's methods are not available to IDEs, as the type is incorrect. This PR makes `ActorHandle` a generic type `ActorHandle[T]` and also creates an type alias: `ActorProxy = Union["ActorHandle[T]", type[T]]` to expose the method signatures from the Actor class. Here are some other possible candidates for the type name instead of `ActorProxy` from claude: ActorInterface TypedActorHandle RemoteActorType ActorProxy ActorT cc @richardliaw @pcmoritz We'll add better type hints for actor methods in a follow up PR. The following are screenshots demonstrating the type hints in Cursor before and after this PR: **Before this PR**    --- **After this PR**    ## Related issue number <!-- For example: "Closes #1234" --> ## Checks - [x] I've signed off every commit(by using the -s flag, i.e., `git commit -s`) in this PR. - [x] I've run `scripts/format.sh` to lint the changes in this PR. - [ ] I've included any doc changes needed for https://docs.ray.io/en/master/. - [ ] I've added any new APIs to the API Reference. For example, if I added a method in Tune, I've added it in `doc/source/tune/api/` under the corresponding `.rst` file. - [ ] I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/ - Testing Strategy - [ ] Unit tests - [ ] Release tests - [ ] This PR is not tested :( --------- Signed-off-by: will.lin <will.lin@anyscale.com> Signed-off-by: Philipp Moritz <pcmoritz@gmail.com> Co-authored-by: Philipp Moritz <pcmoritz@gmail.com>
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ray-project#61034) Currently, there is a chance that a worker can crash on the `getenv` syscall from the otel lazy initialization. We found the race is between `setenv` on the user thread (`setenv(RBLN_DEVICES)`) and `getenv` on the worker internal thread. However, we can't forbid `setenv` on a user's thread; the only thing we can do is not call `getenv` once the user's thread starts. Here is the backtrace of the crash we found by intercepting the `getenv`: ``` [getenv_preload] setenv name=RBLN_DEVICES value= overwrite=1 [getenv_preload] setenv backtrace: #0 /home/ray/getenv_trace_preload.so(setenv+0x73) [0x748a77ea870b] #1 ray::IDLE(+0x224d5b) [0x59f10aeead5b] #2 ray::IDLE(+0x13dfc3) [0x59f10ae03fc3] #3 ray::IDLE(_PyEval_EvalFrameDefault+0x313) [0x59f10adf3703] #4 ray::IDLE(+0x184bfd) [0x59f10ae4abfd] #5 ray::IDLE(+0x19da04) [0x59f10ae63a04] #6 ray::IDLE(_PyEval_EvalFrameDefault+0x115a) [0x59f10adf454a] #7 ray::IDLE(_PyFunction_Vectorcall+0x6c) [0x59f10ae03dfc] #8 ray::IDLE(_PyEval_EvalFrameDefault+0x49ae) [0x59f10adf7d9e] #9 ray::IDLE(_PyFunction_Vectorcall+0x6c) [0x59f10ae03dfc] #10 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x9a9333) [0x748a76270333] #11 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(_ZNSt17_Function_handlerIFN3ray6StatusERKNS0_3rpc7AddressENS2_8TaskTypeESsRKNS0_4core11RayFunctionERKSt13unordered_mapISsdSt4hashISsESt8equal_toISsESaISt4pairIKSsdEEERKSt6vectorISt10shared_ptrINS0_9RayObjectEESaISQ_EERKSN_INS2_15ObjectReferenceESaISV_EERSH_S10_PSN_ISG_INS0_8ObjectIDESQ_ESaIS12_EES15_PSN_ISG_IS11_bESaIS16_EERSO_INS0_17LocalMemoryBufferEEPbPSsS1E_RKSN_INS0_16ConcurrencyGroupESaIS1F_EESsbbblRKSt8optionalISsEEPFS1_S5_S6_SsSA_SM_SU_SZ_SsSsS15_S15_S19_S1C_S1D_S1E_S1E_S1J_SsbbblS1L_EE9_M_invokeERKSt9_Any_dataS5_OS6_OSsSA_SM_SU_SZ_S10_S10_OS15_S1X_OS19_S1C_OS1D_OS1E_S20_S1J_S1W_ObS21_S21_OlS1N_+0x1ab) [0x748a761786ab] #12 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(_ZN3ray4core10CoreWorker11ExecuteTaskERKNS_17TaskSpecificationESt8optionalISt13unordered_mapISsSt6vectorISt4pairIldESaIS9_EESt4hashISsESt8equal_toISsESaIS8_IKSsSB_EEEEPS7_IS8_INS_8ObjectIDESt10shared_ptrINS_9RayObjectEEESaISP_EESS_PS7_IS8_ISL_bESaIST_EEPN6google8protobuf16RepeatedPtrFieldINS_3rpc20ObjectReferenceCountEEEPbPSsS15_+0x1166) [0x748a76320a96] #13 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(_ZNSt17_Function_handlerIFN3ray6StatusERKNS0_17TaskSpecificationESt8optionalISt13unordered_mapISsSt6vectorISt4pairIldESaIS9_EESt4hashISsESt8equal_toISsESaIS8_IKSsSB_EEEEPS7_IS8_INS0_8ObjectIDESt10shared_ptrINS0_9RayObjectEEESaISP_EESS_PS7_IS8_ISL_bESaIST_EEPN6google8protobuf16RepeatedPtrFieldINS0_3rpc20ObjectReferenceCountEEEPbPSsS15_ESt5_BindIFMNS0_4core10CoreWorkerEFS1_S4_SK_SS_SS_SW_S13_S14_S15_S15_EPS19_St12_PlaceholderILi1EES1D_ILi2EES1D_ILi3EES1D_ILi4EES1D_ILi5EES1D_ILi6EES1D_ILi7EES1D_ILi8EES1D_ILi9EEEEE9_M_invokeERKSt9_Any_dataS4_OSK_OSS_S1U_OSW_OS13_OS14_OS15_S1Y_+0x87) [0x748a762e8647] #14 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0xb5186d) [0x748a7641886d] #15 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0xb557c5) [0x748a7641c7c5] #16 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x103e3eb) [0x748a769053eb] #17 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x1034f0b) [0x748a768fbf0b] #18 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0xb6f21b) [0x748a7643621b] #19 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x15893cb) [0x748a76e503cb] #20 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x158ad69) [0x748a76e51d69] #21 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x158b472) [0x748a76e52472] #22 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(_ZN3ray4core10CoreWorker20RunTaskExecutionLoopEv+0x132) [0x748a762e4252] #23 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(_ZN3ray4core21CoreWorkerProcessImpl26RunWorkerTaskExecutionLoopEv+0x41) [0x748a76336bd1] #24 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x8a45c1) [0x748a7616b5c1] #25 ray::IDLE(_PyEval_EvalFrameDefault+0x6fb) [0x59f10adf3aeb] #26 ray::IDLE(_PyFunction_Vectorcall+0x6c) [0x59f10ae03dfc] #27 ray::IDLE(_PyEval_EvalFrameDefault+0x6fb) [0x59f10adf3aeb] #28 ray::IDLE(+0x1d5cac) [0x59f10ae9bcac] #29 ray::IDLE(PyEval_EvalCode+0x85) [0x59f10ae9bbf5] #30 ray::IDLE(+0x20732a) [0x59f10aecd32a] #31 ray::IDLE(+0x201d13) [0x59f10aec7d13] #32 ray::IDLE(+0x976be) [0x59f10ad5d6be] #33 ray::IDLE(_PyRun_SimpleFileObject+0x1bb) [0x59f10aec23db] #34 ray::IDLE(_PyRun_AnyFileObject+0x44) [0x59f10aec1f74] #35 ray::IDLE(Py_RunMain+0x371) [0x59f10aebf3e1] #36 ray::IDLE(Py_BytesMain+0x37) [0x59f10ae8f447] #37 /lib/x86_64-linux-gnu/libc.so.6(+0x29d90) [0x748a77baad90] #38 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80) [0x748a77baae40] #39 ray::IDLE(+0x1c930e) [0x59f10ae8f30e] [getenv_preload] getenv name=OTEL_CPP_EXPORTER_OTLP_METRICS_RETRY_BACKOFF_MULTIPLIER [getenv_preload] backtrace: #0 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x10a9d17) [0x7321ce3c9d17] #1 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x10abe2b) [0x7321ce3cbe2b] #2 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x1050ffc) [0x7321ce370ffc] #3 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x104f4d7) [0x7321ce36f4d7] #4 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x1045833) [0x7321ce365833] #5 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0xa6c760) [0x7321cdd8c760] #6 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0xe69d9a) [0x7321ce189d9a] #7 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(_ZN3ray3rpc14ClientCallImplINS0_16HealthCheckReplyEE15OnReplyReceivedEv+0x165) [0x7321ce18c005] #8 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(_ZNSt17_Function_handlerIFvvEZN3ray3rpc17ClientCallManager29PollEventsFromCompletionQueueEiEUlvE_E9_M_invokeERKSt9_Any_data+0x15) [0x7321cdd8e475] #9 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x103e3eb) [0x7321ce35e3eb] #10 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x1034f0b) [0x7321ce354f0b] #11 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0xb6f21b) [0x7321cde8f21b] #12 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x15893cb) [0x7321ce8a93cb] #13 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x158ad69) [0x7321ce8aad69] #14 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0x158b472) [0x7321ce8ab472] #15 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0xa6bb54) [0x7321cdd8bb54] #16 /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so(+0xba2250) [0x7321cdec2250] #17 /lib/x86_64-linux-gnu/libc.so.6(+0x94ac3) [0x7321cf66eac3] #18 /lib/x86_64-linux-gnu/libc.so.6(+0x1268d0) [0x7321cf7008d0] *** SIGSEGV received at time=1770862205 on cpu 1 *** PC: @ 0x748a77bc5c1d (unknown) getenv @ 0x748a77bc3520 (unknown) (unknown) {"asctime":"2026-02-11 18:10:05,910","levelname":"E","message":"*** SIGSEGV received at time=1770862205 on cpu 1 ***","filename":"logging.cc","lineno":474} {"asctime":"2026-02-11 18:10:05,910","levelname":"E","message":"PC: @ 0x748a77bc5c1d (unknown) getenv","filename":"logging.cc","lineno":474} {"asctime":"2026-02-11 18:10:05,910","levelname":"E","message":" @ 0x748a77bc3520 (unknown) (unknown)","filename":"logging.cc","lineno":474} Fatal Python error: Segmentation fault ``` According to the backtrace, we can identify that it is the `OtlpGrpcMetricExporterOptions`, [which called `getenv(OTEL_CPP_EXPORTER_OTLP_METRICS_RETRY_BACKOFF_MULTIPLIER)`](https://github.com/open-telemetry/opentelemetry-cpp/blob/13ad05a6f431efb76995cffb1225d26b45374749/exporters/otlp/src/otlp_grpc_metric_exporter_options.cc#L47), getting initialized by calling `InitOpenTelemetryExporter` in the `metrics_agent_client_->WaitForServerReady()` callback, that causes the issue. This PR moves `OtlpGrpcMetricExporterOptions` into `OpenTelemetryMetricRecorder` (so that we keep otel details encapsulated) and moves its initialization early to `stats::Init()`, to force the `OtlpGrpcMetricExporterOptions` to be initialized early, so that we don't call `getenv` afterward. --------- Signed-off-by: Rueian Huang <rueiancsie@gmail.com>
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Feb 28, 2026
## Description
grpc 1.57.1 will call `GetEnv("GRPC_EXPERIMENTAL_PICKFIRST_LB_CONFIG")`
on every grpc channel establishment for parsing load-balancing policy.
This causes race conditions between user tasks as they are allowed to do
setenv at anytime. This PR upgrades the grpc lib to 1.58.0 to get rid of
the `GetEnv("GRPC_EXPERIMENTAL_PICKFIRST_LB_CONFIG")`.
```
(gdb) bt
#0 __pthread_kill_implementation (no_tid=0, signo=11, threadid=129183804413504) at ./nptl/pthread_kill.c:44
#1 __pthread_kill_internal (signo=11, threadid=129183804413504) at ./nptl/pthread_kill.c:78
#2 __GI___pthread_kill (threadid=129183804413504, signo=signo@entry=11) at ./nptl/pthread_kill.c:89
#3 0x00007580a7545476 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#4 <signal handler called>
#5 __pthread_kill_implementation (no_tid=0, signo=11, threadid=129183804413504) at ./nptl/pthread_kill.c:44
#6 __pthread_kill_internal (signo=11, threadid=129183804413504) at ./nptl/pthread_kill.c:78
#7 __GI___pthread_kill (threadid=129183804413504, signo=signo@entry=11) at ./nptl/pthread_kill.c:89
#8 0x00007580a7545476 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#9 <signal handler called>
#10 __GI_getenv (name=0x7580a6a078c2 "PC_EXPERIMENTAL_PICKFIRST_LB_CONFIG") at ./stdlib/getenv.c:84
#11 0x00007580a67e8b8a in grpc_core::GetEnv(char const*) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#12 0x00007580a649601f in grpc_core::ShufflePickFirstEnabled() () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#13 0x00007580a64960ed in grpc_core::json_detail::FinishedJsonObjectLoader<grpc_core::(anonymous namespace)::PickFirstConfig, 1ul, void>::LoadInto(grpc_core::experimental::Json const&, grpc_core::JsonArgs const&, void*, grpc_core::ValidationErrors*) const () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#14 0x00007580a6787384 in grpc_core::json_detail::LoadWrapped::LoadInto(grpc_core::experimental::Json const&, grpc_core::JsonArgs const&, void*, grpc_core::ValidationErrors*) const ()
from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#15 0x00007580a6497b07 in grpc_core::(anonymous namespace)::PickFirstFactory::ParseLoadBalancingConfig(grpc_core::experimental::Json const&) const ()
from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#16 0x00007580a67c18a7 in grpc_core::LoadBalancingPolicyRegistry::ParseLoadBalancingConfig(grpc_core::experimental::Json const&) const ()
from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#17 0x00007580a66ad9b8 in grpc_core::ClientChannel::OnResolverResultChangedLocked(grpc_core::Resolver::Result) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#18 0x00007580a66ae452 in grpc_core::ClientChannel::ResolverResultHandler::ReportResult(grpc_core::Resolver::Result) ()
from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#19 0x00007580a63bc603 in grpc_core::PollingResolver::OnRequestCompleteLocked(grpc_core::Resolver::Result) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#20 0x00007580a63bcb2d in std::_Function_handler<void (), grpc_core::PollingResolver::OnRequestComplete(grpc_core::Resolver::Result)::{lambda()#1}>::_M_invoke(std::_Any_data const&)
() from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#21 0x00007580a67cbf46 in grpc_core::WorkSerializer::WorkSerializerImpl::Run(std::function<void ()>, grpc_core::DebugLocation const&) ()
from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#22 0x00007580a67cc0ea in grpc_core::WorkSerializer::Run(std::function<void ()>, grpc_core::DebugLocation const&) ()
from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#23 0x00007580a63bd117 in grpc_core::PollingResolver::OnRequestComplete(grpc_core::Resolver::Result) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#24 0x00007580a63b3f86 in grpc_core::(anonymous namespace)::AresClientChannelDNSResolver::AresRequestWrapper::OnHostnameResolved(void*, absl::lts_20230802::Status) ()
from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#25 0x00007580a67c44c4 in grpc_core::ExecCtx::Flush() () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#26 0x00007580a63408a2 in grpc_core::ExecCtx::~ExecCtx() () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#27 0x00007580a6740343 in grpc_call_start_batch () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#28 0x00007580a5e281e9 in grpc::internal::CallOpSet<grpc::internal::CallOpSendInitialMetadata, grpc::internal::CallOpSendMessage, grpc::internal::CallOpRecvInitialMetadata, grpc::internal::CallOpRecvMessage<google::protobuf::MessageLite>, grpc::internal::CallOpClientSendClose, grpc::internal::CallOpClientRecvStatus>::ContinueFillOpsAfterInterception() ()
from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#29 0x00007580a5e2d809 in grpc::internal::BlockingUnaryCallImpl<google::protobuf::MessageLite, google::protobuf::MessageLite>::BlockingUnaryCallImpl(grpc::ChannelInterface*, grpc::inte--Type <RET> for more, q to quit, c to continue without paging--c
rnal::RpcMethod const&, grpc::ClientContext*, google::protobuf::MessageLite const&, google::protobuf::MessageLite*) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#30 0x00007580a62d76ea in opentelemetry::proto::collector::metrics::v1::MetricsService::Stub::Export(grpc::ClientContext*, opentelemetry::proto::collector::metrics::v1::ExportMetricsServiceRequest const&, opentelemetry::proto::collector::metrics::v1::ExportMetricsServiceResponse*) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#31 0x00007580a62ca40c in opentelemetry::v1::exporter::otlp::OtlpGrpcClient::DelegateExport(opentelemetry::proto::collector::metrics::v1::MetricsService::StubInterface*, std::unique_ptr<grpc::ClientContext, std::default_delete<grpc::ClientContext> >&&, std::unique_ptr<google::protobuf::Arena, std::default_delete<google::protobuf::Arena> >&&, opentelemetry::proto::collector::metrics::v1::ExportMetricsServiceRequest&&, opentelemetry::proto::collector::metrics::v1::ExportMetricsServiceResponse*) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#32 0x00007580a62c23ed in opentelemetry::v1::exporter::otlp::OtlpGrpcMetricExporter::Export(opentelemetry::v1::sdk::metrics::ResourceMetrics const&) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#33 0x00007580a62c0334 in (anonymous namespace)::OpenTelemetryMetricExporter::Export(opentelemetry::v1::sdk::metrics::ResourceMetrics const&) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#34 0x00007580a62e5fdf in opentelemetry::v1::sdk::metrics::PeriodicExportingMetricReader::CollectAndExportOnce()::{lambda()#1}::operator()() const::{lambda(opentelemetry::v1::sdk::metrics::ResourceMetrics&)#1}::operator()(opentelemetry::v1::sdk::metrics::ResourceMetrics&) const () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#35 0x00007580a62ee7a6 in opentelemetry::v1::sdk::metrics::MetricReader::Collect(opentelemetry::v1::nostd::function_ref<bool (opentelemetry::v1::sdk::metrics::ResourceMetrics&)>) () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#36 0x00007580a62e5085 in std::thread::_State_impl<std::thread::_Invoker<std::tuple<opentelemetry::v1::sdk::metrics::PeriodicExportingMetricReader::CollectAndExportOnce()::{lambda()#1}> > >::_M_run() () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#37 0x00007580a6997be0 in execute_native_thread_routine () from /home/ray/anaconda3/lib/python3.10/site-packages/ray/_raylet.so
#38 0x00007580a7597ac3 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#39 0x00007580a76298d0 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
```
Signed-off-by: Rueian Huang <rueiancsie@gmail.com>
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