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: info.rb
    path of file: ./repos/hexapdf/lib/hexapdf/cli
    
    the code of the file until where you have to start completion: # -*- encoding: utf-8; frozen_string_literal: true -*-
#
#--
# This file is part of HexaPDF.
#
# HexaPDF - A Versatile PDF Creation and Manipulation Library For Ruby
# Copyright (C) 2014-2024 Thomas Leitner
#
# HexaPDF is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License 
    
      def initialize #:nodoc:
        super('info', takes_commands: false)
        short_desc("Show document information")
        long_desc(<<~EOF)
          This command extracts information from the Info dictionary of a PDF file as well
          as some other useful information like the used PDF version and encryption information.

          If the --check option is specified, the PDF file will also be checked for parse and
          validation errors. And if the process doesn't abort, HexaPDF is still able to handle the
          file by correcting the errors.
        EOF
        options.on("--check", "-c", "Check the PDF file for parse errors and validity") do |check|
          @check_file = check
        end
        options.on("--password PASSWORD", "-p", String,
                   "The password for decryption. Use - for reading from standard input.") do |pwd|
          @password = (pwd == '-' ? read_password : pwd)
        end
        @password = nil
        @auto_decrypt = true
        @check_file = false
      end

      def execute(file) #:nodoc:
        output_info(file)
      end

      private

      INFO_KEYS = [:Title, :Author, :Subject, :Keywords, :Creator, :Producer, #:nodoc:
                   :CreationDate, :ModDate].freeze

      COLUMN_WIDTH = 20 #:nodoc:

      def output_info(file) # :nodoc:
        options = pdf_options(@password)
        options[:config]['document.auto_decrypt'] = @auto_decrypt
        HexaPDF::Document.open(file, **options) do |doc|
          if @check_file
            indirect_object = nil
            validation_block = lambda do |msg, correctable, object|
              object = indirect_object unless object.indirect? || object.type == :XXTrailer
              object_type = if object.type == :XXTrailer
                              'trailer'
                            elsif !object.type.to_s.start_with?("XX")
                              "object type #{object.type} (#{object.oid},#{object.gen})"
                            else
                              "object (#{object.oid},#{object.gen})"
                            end
              object_type = "sub-object of #{object_type}" if object == indirect_object
              puts "WARNING: Validation error for #{object_type}: #{msg} " \
                "#{correctable ? '(correctable)' : ''}"
            end
            doc.trailer.validate(auto_correct: true, &validation_block)
            doc.each(only_loaded: false) do |obj|
              indirect_object = obj
              obj.validate(auto_correct: true, &validation_block)
              if obj.data.stream
                begin
                  obj.stream
                rescue StandardError
                  puts "ERROR: Stream of object (#{obj.oid},#{obj.gen}) invalid: #{$!.message}"
                end
              end
            end
          end