Description of the false positive
TypeScript: An import-ed symbol which is used as an indentifier for a class property is not recognized as used.
URL to the alert on the project page on LGTM.com
See https://lgtm.com/projects/g/AlCalzone/node-zwave-js/snapshot/b752986d11840001ee0ebb0b3c4a63b39abd99a1/files/src/lib/commandclass/WakeUpCC.ts?sort=name&dir=ASC&mode=heatmap#xac41bfbe5fa9504:1
SET_VALUE is used in line 43.