# File lib/rabl/engine.rb, line 130
    def collection(data, options={})
      @_collection_name = options[:root] if options[:root]
      @_collection_name ||= data.values.first if data.respond_to?(:each_pair)
      @_object_root_name = options[:object_root] if options.has_key?(:object_root)
      self.object(data_object(data).to_a)
    end