As u can see from the below two pics, the autocompletion is not functioning in that special select case block for the variable res := results{} ONLY (i tested some builtin modules, and some my own modules all works well, so ONLY for that res := results{} variable autocompletion is NOT functioning...)
And actually the select case block is the ONLY place where the variable res := results{} autocompletion is NOT working....
And my code is working well...

