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: httpresponse.rb
    path of file: ./repos/powerstation/powerstation/lib/compiled-jruby/lib/ruby/stdlib/webrick
    
    the code of the file until where you have to start completion: #
# httpresponse.rb -- HTTPResponse Cla
    
    def set_error(ex, backtrace=false)
      case ex
      when HTTPStatus::Status
        @keep_alive = false if HTTPStatus::error?(ex.code)
        self.status = ex.code
      else
        @keep_alive = false
        self.status = HTTPStatus::RC_INTERNAL_SERVER_ERROR
      end