Why does this Kotlin method have enclosing backticks?

Question

What are the backticks used for in the snippet below?

Why add them around the fun is(amount:Int ):Boolean { ... }?

verifier.`is`(amount         


        

Answer 1

is in list of Kotlin reserved words To use Kotlin reserved word (such as is or object) for function/class name you should wrap it to backticks