instance method session_store

# File railties/lib/rails/application/configuration.rb, line 206
      def session_store(new_session_store = nil, **options)
        if new_session_store
          if new_session_store == :active_record_store
            begin
              ActionDispatch::Session::ActiveRecordStore
            rescue NameError
              raise "`ActiveRecord::SessionStore` is extracted out of Rails into a gem. " \
                "Please add `activerecord-session_store` to your Gemfile to use it."
            end
          end

          @session_store = new_session_store
          @session_options = options || {}
        else
          case @session_store
          when :disabled
            nil
          when :active_record_store
            ActionDispatch::Session::ActiveRecordStore
          when Symbol
            ActionDispatch::Session.const_get(@session_store.to_s.camelize)
          else
            @session_store
          end
        end
      end