UFile (package = ) [public final class Simple {...]
    UClass (name = Simple) [public final class Simple {...}]
        UField (name = property) [@org.jetbrains.annotations.NotNull private final var property: java.lang.String = "Mary"]
            UAnnotation (fqName = org.jetbrains.annotations.NotNull) [@org.jetbrains.annotations.NotNull]
            ULiteralExpression (value = "Mary") ["Mary"] = "Mary"
        UMethod (name = method) [public final fun method() : void {...}]
            UBlockExpression [{...}] = external println("Hello, world!")("Hello, world!")
                UCallExpression (kind = UastCallKind(name='method_call'), argCount = 1)) [println("Hello, world!")] = external println("Hello, world!")("Hello, world!")
                    UIdentifier (Identifier (println)) [UIdentifier (Identifier (println))]
                    USimpleNameReferenceExpression (identifier = println, resolvesTo = null) [println] = external println("Hello, world!")("Hello, world!")
                    ULiteralExpression (value = "Hello, world!") ["Hello, world!"] = "Hello, world!"
        UMethod (name = getProperty) [public final fun getProperty() : java.lang.String = UastEmptyExpression]
        UMethod (name = Simple) [public fun Simple() = UastEmptyExpression]