https://freemarker.apache.org/: FreeMarker is a "template engine"; a generic tool to generate text output based on templates. (Apache Software Foundation) 
class freemarker.core.BuiltInsForMarkupOutputs
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: freemarker.core.BuiltInsForMarkupOutputs
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // freemarker.core.BuiltInsForMarkupOutputs this
         0: .line 29
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // freemarker.core.BuiltInsForMarkupOutputs this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/core/BuiltInsForMarkupOutputs;
}
SourceFile: "BuiltInsForMarkupOutputs.java"
NestMembers:
  freemarker.core.BuiltInsForMarkupOutputs$markup_stringBI
InnerClasses:
  markup_stringBI = freemarker.core.BuiltInsForMarkupOutputs$markup_stringBI of freemarker.core.BuiltInsForMarkupOutputs