option_html_attributes(element) private

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# File actionpack/lib/action_view/helpers/form_options_helper.rb, line 525
        def option_html_attributes(element)
          return "" unless Array === element
          html_attributes = []
          element.select { |e| Hash === e }.reduce({}, :merge).each do |k, v|
            html_attributes << " #{k}=\"#{ERB::Util.html_escape(v.to_s)}\""
          end
          html_attributes.join
        end
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