tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt in trackler-2.2.1.52 vs tracks/kotlin/exercises/etl/.meta/src/reference/kotlin/ETL.kt in trackler-2.2.1.53

@@ -1,5 +1,11 @@
 object ETL {
+
     fun transform(old: Map<Int, Collection<Char>>): Map<Char, Int> {
-        return old.flatMap { mapEntry -> mapEntry.value.map { word -> Pair(word.toLowerCase(), mapEntry.key) } }.toMap()
+        return old.flatMap { mapEntry ->
+            mapEntry.value.map { word ->
+                Pair(word.toLowerCase(), mapEntry.key)
+            }
+        }.toMap()
     }
+
 }