File "site-packages\trezorlib\client.py", line 140, in cancel
  File "site-packages\trezorlib\client.py", line 149, in _raw_write
  File "site-packages\trezorlib\transport\bridge.py", line 164, in write
  File "site-packages\trezorlib\transport\bridge.py", line 68, in write_buf
  File "site-packages\trezorlib\transport\bridge.py", line 132, in _call
  File "site-packages\trezorlib\transport\bridge.py", line 45, in call_bridge