# File lib/rabl/engine.rb, line 200
    def collection(data, options = {})
      @_collection_name = options[:root] if options[:root]
      @_collection_name ||= data.values.first if data.is_a?(Hash)

      @_object_root_name = options[:object_root] if options.has_key?(:object_root)

      object(data_object(data) || [])
    end