Thread-ConsumeBidirectionalStream caught unexpected exception 'generator' object has no attribute 'add_done_callback' and will exit.

[mharoonkwentra]

Notes
We are trying to use Opentelemetry to instrument grpc to get traces of functions. We observed this error on local once, and we couldn't reproduce it again, but it's always on production server. Furthermore, we are using GCP monitoring suite (stack drive) to check traces.

Environment:
Django==3.2.6
Python==3.7

grpcio-tools==1.32.0
grpcio==1.33.2

opentelemetry-api==1.4.1
opentelemetry-sdk==1.4.1
opentelemetry-instrumentation-grpc==0.23b2

Instrumentation code:
set_global_textmap(CloudTraceFormatPropagator())
# sampling sends a portion of generated spans based on a 1/X population size
sample_rate = int(os.getenv('SAMPLE_RATE', '1'))
sampler = TraceIdRatioBased(1 / sample_rate)
tracer_provider = TracerProvider(sampler=sampler)
cloud_trace_exporter = CloudTraceSpanExporter()
tracer_provider.add_span_processor(SimpleSpanProcessor(cloud_trace_exporter))
trace.set_tracer_provider(tracer_provider)
tracer = trace.get_tracer(name)
GrpcInstrumentorClient().instrument() # when commented error isn't reproduced
except (ValueError, NotImplementedError, DefaultCredentialsError) as exc:
print(exc) # Handle errors here

The error
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/google/api_core/bidi.py", line 637, in _thread_main
self._bidi_rpc.open()
File "/usr/local/lib/python3.7/site-packages/google/api_core/bidi.py", line 287, in open
call._wrapped.add_done_callback(self._on_call_done)
AttributeError: 'generator' object has no attribute 'add_done_callback'

[AkselAllas]

I have the same issue. Not using django. Maybe a grpcio issue?