https://www.graalvm.org/truffle/javadoc/com/oracle/truffle/api/strings/TruffleString.FromLongNode.html
TruffleString.FromLongNode (GraalVM Truffle Java API Reference)
declaration: package: com.oracle.truffle.api.strings, class: TruffleString, class: FromLongNode
java apigraalvmtrufflereference