Error in grpc _channel.py

[valentinlageard]

I am testing the gRPC api with elkpi 0.11.0 development version running on a raspi 4b with hifiberry dac+ adc pro.

I am running sushi with the config_empty.json, raspa audio frontend and a buffer size of 64.

To reproduce the error, run:

from elkpy import sushicontroller as sc

controller = sc.SushiController()
list_of_tracks = controller.audio_graph.get_all_tracks()
print(list_of_tracks)
controller.close()

gives:

[{
 id: 0 
 label:  
 name: main 
 input_channels: 2 
 input_busses: 1 
 output_channels: 2 
 output_busses: 1 
 processors: [1] 
}]
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'
Exception ignored in: <function _ChannelCallState.__del__ at 0x7fb6812d30>
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/grpc/_channel.py", line 1126, in __del__
AttributeError: 'NoneType' object has no attribute 'StatusCode'