Passing curly braces as literal strings

Make it possible to pass curly braces as literal string instead of signifying replacement tokens.

Example URL (Laserfiche search parameter uses curly braces):
https://laserfiche.ourwebsite.org/laserfiche/browse.aspx?repo=BP-Laserfiche#/?search={search paraemeters and CaseNumber="{My layer's case field}"}

This is a pretty specific one, and I imagine it could be tricky to implement. But I'm still posting it as an idea in case other people have this need.