https://www.graalvm.org/ 
public interface com.oracle.truffle.api.instrumentation.TruffleInstrument$ContextLocalFactory<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.oracle.truffle.api.instrumentation.TruffleInstrument$ContextLocalFactory
  super_class: java.lang.Object
{
  public abstract T create(com.oracle.truffle.api.TruffleContext);
    descriptor: (Lcom/oracle/truffle/api/TruffleContext;)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Lcom/oracle/truffle/api/TruffleContext;)TT;
    MethodParameters:
         Name  Flags
      context  
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "TruffleInstrument.java"
NestHost: com.oracle.truffle.api.instrumentation.TruffleInstrument
InnerClasses:
  protected abstract ContextLocalFactory = com.oracle.truffle.api.instrumentation.TruffleInstrument$ContextLocalFactory of com.oracle.truffle.api.instrumentation.TruffleInstrument
    RuntimeVisibleAnnotations: 
      java.lang.FunctionalInterface()