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: fetch_command.rb
    path of file: ./repos/artichoke/artichoke-backend/vendor/ruby/lib/rubygems/commands
    
    the code of the file until where you have to start completion: # frozen_string_l
    
  def initialize
    defaults = {
      :suggest_alternate => true,
      :version           => Gem::Requirement.default,
    }

    super 'fetch', 'Download a gem and place it in the current directory', defaults

    add_bulk_threshold_option
    add_proxy_option
    add_source_option
    add_clear_sources_option

    add_version_option
    add_platform_option
    add_prerelease_option

    add_option '--[no-]suggestions', 'Suggest alternates when gems are not found' do |value, options|
      options[:suggest_alternate] = value
    end
  end