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: metadata.rb
    path of file: ./repos/gitlabhq/lib/gitlab/ci/build/artifacts
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require 'zlib'
require 'json'

module Gitlab
  module Ci
    module Build
      module Artifacts
        class Metadata
          ParserError = Class.new(StandardError)
 
    
          def initialize(stream, path, **opts)
            @stream = stream

            # Ensure to remove any ./ prefix from the path
            # so that the pattern matching will work as expected
            @path = path.gsub(%r{^\./}, '')

            @opts = opts
            @full_version = read_version
          end