Inline structural type example

Author: Duhemm

docs/docs/reference/changed/structural-types.md

@@ -29,7 +29,25 @@ configure how fields and methods should be resolved.
 
 ## Example
 
-<script src="https://scastie.scala-lang.org/Duhemm/HOZFKyKLTs294XOSYPU5Fw.js"></script>
+```scala
+object StructuralTypeExample {
+
+  case class Record(elems: (String, Any)*) extends Selectable {
+    def selectDynamic(name: String): Any = elems.find(_._1 == name).get._2
+  }
+
+  type Person = Record {
+    val name: String
+    val age: Int
+  }
+
+  def main(args: Array[String]): Unit = {
+    val person = Record("name" -> "Emma", "age" -> 42).asInstanceOf[Person]
+    println(s"${person.name} is ${person.age} years old.")
+    // Prints: Emma is 42 years old.
+  }
+}
+```
 
 ## Extensibility