https://www.graalvm.org/ 
public interface com.oracle.svm.truffle.nfi.NativeAPI$TruffleThreadAPI extends org.graalvm.word.PointerBase
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.oracle.svm.truffle.nfi.NativeAPI$TruffleThreadAPI
  super_class: java.lang.Object
{
  public abstract void setGetTruffleEnvFunction(com.oracle.svm.truffle.nfi.NativeAPI$GetTruffleEnvFunction);
    descriptor: (Lcom/oracle/svm/truffle/nfi/NativeAPI$GetTruffleEnvFunction;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.c.struct.CField(value = "getTruffleEnv")
    MethodParameters:
      Name  Flags
      fn    

  public abstract void setAttachCurrentThreadFunction(com.oracle.svm.truffle.nfi.NativeAPI$AttachCurrentThreadFunction);
    descriptor: (Lcom/oracle/svm/truffle/nfi/NativeAPI$AttachCurrentThreadFunction;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.c.struct.CField(value = "attachCurrentThread")
    MethodParameters:
      Name  Flags
      fn    

  public abstract void setDetachCurrentThreadFunction(com.oracle.svm.truffle.nfi.NativeAPI$DetachCurrentThreadFunction);
    descriptor: (Lcom/oracle/svm/truffle/nfi/NativeAPI$DetachCurrentThreadFunction;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.c.struct.CField(value = "detachCurrentThread")
    MethodParameters:
      Name  Flags
      fn    
}
SourceFile: "NativeAPI.java"
NestHost: com.oracle.svm.truffle.nfi.NativeAPI
InnerClasses:
  public abstract AttachCurrentThreadFunction = com.oracle.svm.truffle.nfi.NativeAPI$AttachCurrentThreadFunction of com.oracle.svm.truffle.nfi.NativeAPI
  public abstract DetachCurrentThreadFunction = com.oracle.svm.truffle.nfi.NativeAPI$DetachCurrentThreadFunction of com.oracle.svm.truffle.nfi.NativeAPI
  public abstract GetTruffleEnvFunction = com.oracle.svm.truffle.nfi.NativeAPI$GetTruffleEnvFunction of com.oracle.svm.truffle.nfi.NativeAPI
  public abstract TruffleThreadAPI = com.oracle.svm.truffle.nfi.NativeAPI$TruffleThreadAPI of com.oracle.svm.truffle.nfi.NativeAPI
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.c.struct.CStruct(value = "struct __TruffleThreadAPI")