public interface org.antlr.v4.misc.Utils$Func1<T1, TResult>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.antlr.v4.misc.Utils$Func1
  super_class: java.lang.Object
{
  public abstract TResult exec();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (TT1;)TTResult;
    MethodParameters:
      Name  Flags
      arg1  
}
Signature: <T1:Ljava/lang/Object;TResult:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "Utils.java"
NestHost: org.antlr.v4.misc.Utils
InnerClasses:
  public abstract Func1 = org.antlr.v4.misc.Utils$Func1 of org.antlr.v4.misc.Utils