https://www.graalvm.org/ 
public interface org.graalvm.compiler.nodes.FixedNodeInterface extends org.graalvm.compiler.nodes.ValueNodeInterface
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.graalvm.compiler.nodes.FixedNodeInterface
  super_class: java.lang.Object
{
  public abstract org.graalvm.compiler.nodes.FixedNode asNode();
    descriptor: ()Lorg/graalvm/compiler/nodes/FixedNode;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public org.graalvm.compiler.graph.Node asNode();
    descriptor: ()Lorg/graalvm/compiler/graph/Node;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokeinterface org.graalvm.compiler.nodes.FixedNodeInterface.asNode:()Lorg/graalvm/compiler/nodes/FixedNode;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public org.graalvm.compiler.nodes.ValueNode asNode();
    descriptor: ()Lorg/graalvm/compiler/nodes/ValueNode;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokeinterface org.graalvm.compiler.nodes.FixedNodeInterface.asNode:()Lorg/graalvm/compiler/nodes/FixedNode;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "FixedNodeInterface.java"