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: list_item.rb
    path of file: ./repos/rdoc/lib/rdoc/markup
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
##
# An item within a List that contains paragraphs, headings, etc.
#
# For BULLET, 
    
  def accept visitor
    visitor.accept_list_item_start self

    @parts.each do |part|
      part.accept visitor
    end

    visitor.accept_list_item_end self
  end