You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: parser.rb
    path of file: ./repos/asciidoctor-pdf/lib/asciidoctor/pdf/formatted_text
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
# Autogenerated from a Treetop grammar. Edits may be lost.


module Asciidoctor
module PDF
module FormattedText
module Markup
  include Treetop::Runtime

  def root
 
    
    def content
      if (ref_data = elements[1]).terminal?
        { type: :charref, reference_type: :name, value: ref_data.text_value.to_sym }
      elsif ref_data.elements[0].text_value == '#'
        { type: :charref, reference_type: :decimal, value: ref_data.elements[1].text_value.to_i }
      else
        { type: :charref, reference_type: :hex, value: ref_data.elements[1].text_value }
      end