When calling niscope.Session.fetch_array_measurement in a MeasurementLink measurement plugin, meas_wfm_size cannot be set

[ni-jfitzger]

Description of issue

Due to ni/grpc-device#914, niscope 1.4.3 does not allow meas_wfm_size to be set for fetch_array_measurement in a MeasurementLink measurement plugin.

Attempting to set meas_wfm_size will result in ValueError('The argument "meas_wfm_size" must be None when using gRPC.')

[ni-jfitzger]

Note: The fix requires NI gRPC Device Server 2023 Q2 or later. Earlier versions will return all samples, even if fewer are requested.