Please Help A Noob! Parse error: syntax error, unexpected TVAL_ID, expecting ','

hey there I have been following a tutorial and it requires this shader they don’t go into details about this shader so i have copied it. however I’m running into a compilation error but my code is identical (to what I can see).

the error is: Parse error: syntax error, unexpected TVAL_ID, expecting ‘,’ on line 11

here is the code below