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: package_file_type.rb
    path of file: ./repos/gitlabhq/app/graphql/types/packages
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Types
  module Packages
    class PackageFileTyp
    
      def file_metadata
        case object.package.package_type
        when 'conan'
          object.conan_file_metadatum
        when 'helm'
          object.helm_file_metadatum
        end