Other measurement metadata functions: getInstrDesc,
getWhatMeasured,
getWhenMeasured,
getWhereMeasured,
get_attributes,
isValidInstrDesc,
isValidInstrSettings,
setInstrDesc,
setInstrSettings,
setWhatMeasured,
setWhenMeasured,
setWhereMeasured,
trimInstrDesc,
trimInstrSettings