# File lib/rspec/core/example_group.rb, line 260
      def self.store_before_all_ivars(example_group_instance)
        return if example_group_instance.instance_variables.empty?
        example_group_instance.instance_variables.each { |ivar|
          before_all_ivars[ivar] = example_group_instance.instance_variable_get(ivar)
        }
      end