Google assistant sdk on raspberry pi

If you get this nasty exception, follow this link.

Traceback (most recent call last):
  File "/usr/lib/python3.4/runpy.py", line 170, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.4/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/pi/env/lib/python3.4/site-packages/googlesamples/assistant/__main__.py", line 320, in <module>
    main()
  File "/home/pi/env/lib/python3.4/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/home/pi/env/lib/python3.4/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/home/pi/env/lib/python3.4/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/pi/env/lib/python3.4/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/home/pi/env/lib/python3.4/site-packages/googlesamples/assistant/__main__.py", line 272, in main
    flush_size=audio_flush_size
  File "/home/pi/env/lib/python3.4/site-packages/googlesamples/assistant/audio_helpers/__init__.py", line 179, in __init__
    blocksize=int(block_size/2),  # blocksize is in number of frames.
  File "/home/pi/env/lib/python3.4/site-packages/sounddevice.py", line 1491, in __init__
    **_remove_self(locals()))
  File "/home/pi/env/lib/python3.4/site-packages/sounddevice.py", line 1017, in __init__
    'Error opening {0}'.format(self.__class__.__name__))
  File "/home/pi/env/lib/python3.4/site-packages/sounddevice.py", line 2671, in _check
    raise PortAudioError(msg)
sounddevice.PortAudioError: Error opening RawStream: Invalid sample rate
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