Rails 5 Code Reading Part 2 ~ Action View ~

    class RenderedTemplate # :nodoc:
      attr_reader :body, :template

      def initialize(body, template)
        @body = body
        @template = template
      end

      def format
        template.format
      end

      EMPTY_SPACER = Struct.new(:body).new
    end

Why is the template in the format method not @template and an instance variable?

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