Describe the bug
Open VSC SAS Extension base on Main branch. Create a .sas file and type code like 'x=SAS.sasfnc("fnc1",1,2)' in a 'proc python' code block. It will show error “SAS” is not defined on problem panel. However it can run the code successfully without any errors.

Steps to reproduce

1. Sign in with a valid viya connection
2. Create a .sas file
3. Type code below

proc fcmp outlib=work.funcs.trial;
    function fnc1(num1, num2);
    return(num1+num2);
    endsub;
quit;

options cmplib=work.funcs;

proc python;
submit;
x = SAS.sasfnc("fnc1",1,2)
print("x = ", int(x))
endsubmit;
run;

4. Run code

Expected behavior
No error validation for 'SAS'

Screenshots

Environment (please complete the following information):
Client OS: [e.g. Windows 11]
Extension version: [e.g. v1.12.0]