Preface: Sort of green to this, apologies if it is beyond obvious.
I'm using SQL Server Management Studio 2014, and in one of our schemata found this:
I've gone down a number of rabbit holes regarding variants in schemata, != functionality, schema objects, and can't seem to get a handle on what this syntax definitively stands for or accomplishes.
Help appreciated.
These are SSMS template parameters. The syntax includes name, datatype, and example value (blank in your case).
You can press Ctrl + Shift + M to bring up a dialogue box to fill them in.
Or if that doesn't do anything see this article for how to fix.