Fix go vet warning
Fix go vet warning

Move variables from example function arguments to package level
variables to avoid `go vet` warning.

helight/helight_code,gorilla/websocket,helight/helight_code,skyportsystems/websocket,helight/helight_code,helight/helight_code,helight/helight_code,your-org/websocket,helight/helight_code,helight/helight_code,helight/helight_code,helight/helight_code,y3llowcake/websocket