class Rspec::Core::ExampleGroup

def self.set_it_up(*args)
  @configuration = args.shift
  @metadata = Rspec::Core::Metadata.new(superclass_metadata).process(*args)
  configuration.find_modules(self).each do |include_or_extend, mod, opts|
    if include_or_extend == :extend
      send(:extend, mod) unless extended_modules.include?(mod)
    else
      send(:include, mod) unless included_modules.include?(mod)
    end
  end
end