instrument: Fix get_channels method

- `Instrument.channels` is a dictionary, we want the values not the
   keys; this is provded by `list_channels`.

- `InstrumentChannel` objects do not have a `measure` attribute. Use
  `kind` instead.
1 file changed
tree: f7618851bbb81cbef681891d0b037b205b6175b5
  1. devlib/
  2. doc/
  3. src/
  4. .gitignore
  5. README.rst
  6. setup.py