Improve error message when a wrong type is passed to Spectrometer
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Previously the error message was TypeError: device has to be a `SeaBreezeDevice` which could be misinterpreted. It is the variable that has an incorrect type, not the physical spectrometer.
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Previously the error message was
which could be misinterpreted:
it is the variable that has an incorrect type, not the physical spectrometer.
Also display the representation of
device, following this example:https://docs.python.org/3/howto/descriptor.html