code: def compile_converter(templates_dir:, engine_opts: {}, pretty: false, **opts)
        unless Dir.exist? templates_dir
          raise ArgumentError, "Templates directory '#{templates_dir}' does not exist"
        end
  
        templates = find_templates(templates_dir)
        transforms_code = compile_templates(templates, engine_opts, pretty: pretty)
  
        generate_class(transforms_code: transforms_code,
                       helpers_code: read_helpers(templates_dir), **opts)
      end
docs: (see ConverterGenerator.generate)
  
   Compiles templates found in _templates_dir_ to Ruby and generates an Asciidoctor converter
   class from them.
  
   @param templates_dir [String] path of the directory where to look for templates
     and (optional) +helpers.rb+.
   @param engine_opts [Hash] a hash of options to pass into the templating engine.
     Default is empty.
   @param pretty [Boolean] enable pretty-formatting of the generated Ruby code?
  
   @raise [ArgumentError] if the given _templates_dir_ does not exist.