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keys_to_symbols(hash) private

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# File actionpack/lib/action_controller/vendor/html-scanner/html/node.rb, line 47
      def keys_to_symbols(hash)
        hash.keys.inject({}) do |h,k|
          raise "illegal key #{k.inspect}" unless k.respond_to?(:to_sym)
          h[k.to_sym] = hash[k]
          h
        end
      end
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