0.31.0 - December 2021 (2021-12-20)

Improved:

• Do not apply offset or scale when getting a DelegateParameter and source is
  uninitialized (its value is None) to prevent a TypeError being raised. Closes
  #3653 (#3662)
• get_parameter_data for an empty dataset now correctly
  returns a dict of dicts of empty numpy arrays consistent
  with how data is normally returned. Previously, this returned an
  empty dict. (#3682)

New Drivers:

• Adds a driver for the PNA N5222B (#3683)

Improved Drivers:

• AMI430 magnet power supply: fix switch heater parameters that return 0 or 1 as a string (#3650)
• Adds CW mode to PNA 52xx (#3683)
• Update N52xx driver to fix warnings on initialization
  related to not passing **kwargs in trace parameters (closes #3687).
  PNA traces updated to use ParameterWithSetpoints as base instead of
  ArrayParameter. (#3688)
• Add example notebook for R&S SGS100A RF source. (#3680)