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: version.rb
    path of file: ./repos/ruby-packer/ruby/spec/mspec/lib/mspec/guards
    
    the code of the file until where you have to start completion: require 'mspec/utils/depre
    
  def initialize(version)
    case version
    when String
      @version = SpecVersion.new version
    when Range
      MSpec.deprecate "an empty version range end", 'a specific version' if version.end.empty?
      a = SpecVersion.new version.begin
      b = SpecVersion.new version.end
      unless version.exclude_end?
        MSpec.deprecate "ruby_version_is with an inclusive range", 'an exclusive range ("2.1"..."2.3")'
      end