https://freemarker.apache.org/: FreeMarker is a "template engine"; a generic tool to generate text output based on templates. (Apache Software Foundation) 
public interface freemarker.template.TemplateHashModelEx2$KeyValuePairIterator
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: freemarker.template.TemplateHashModelEx2$KeyValuePairIterator
  super_class: java.lang.Object
{
  public abstract boolean hasNext();
    descriptor: ()Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws freemarker.template.TemplateModelException

  public abstract freemarker.template.TemplateHashModelEx2$KeyValuePair next();
    descriptor: ()Lfreemarker/template/TemplateHashModelEx2$KeyValuePair;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws freemarker.template.TemplateModelException
}
SourceFile: "TemplateHashModelEx2.java"
NestHost: freemarker.template.TemplateHashModelEx2
InnerClasses:
  public abstract KeyValuePair = freemarker.template.TemplateHashModelEx2$KeyValuePair of freemarker.template.TemplateHashModelEx2
  public abstract KeyValuePairIterator = freemarker.template.TemplateHashModelEx2$KeyValuePairIterator of freemarker.template.TemplateHashModelEx2