# File lib/dm-core/adapters/yaml_adapter.rb, line 26
      def update(attributes, collection)
        attributes = attributes_as_fields(attributes)

        update_records(collection.model) do |records|
          records_to_update = collection.query.filter_records(records.dup)
          records_to_update.each { |resource| resource.update(attributes) }.size
        end
      end