module RSpec::Core::Metadata::GroupMetadataHash

def described_class
  container_stack.each do |g|
    [:described_class, :describes].each do |key|
      if g.has_key?(key)
        value = g[key]
        return value unless value.nil?
      end
    end
  end
  container_stack.reverse.each do |g|
    candidate = g[:description_args].first
    return candidate unless String === candidate || Symbol === candidate
  end
  nil
end