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: input_parser.rb
    path of file: ./repos/hscode/lib/hscode
    
    the code of the file until where you have to start completion: require 'hscode/pretty_print'

module Hscode
  class InputParser
    attr_reader :options

    def initialize
      @options = OpenStruct.new
    end

    def parse(args)
      opt
    
    def display_help_message(opts)
      opts.on_tail('-h', '--help', 'Show this help message') do
        puts opts, 'Examples:
          hscode -c 200
          hscode -c 200 -v
          hscode -l
          hscode -l 2xx
        '
        exit
      end
    end