public interface org.antlr.v4.misc.Utils$Func0<TResult>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.antlr.v4.misc.Utils$Func0
  super_class: java.lang.Object
{
  public abstract TResult exec();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()TTResult;
}
Signature: <TResult:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "Utils.java"
NestHost: org.antlr.v4.misc.Utils
InnerClasses:
  public abstract Func0 = org.antlr.v4.misc.Utils$Func0 of org.antlr.v4.misc.Utils