instance method fold_arrays

# File activesupport/lib/active_support/vendor/xml-simple-1.0.11/xmlsimple.rb, line 544
  def fold_arrays(hash)
    fold_amount = 0
    keyattr = @options['keyattr']
    if (keyattr.instance_of?(Array) || keyattr.instance_of?(Hash))
      hash.each { |key, value|
        if value.instance_of?(Array)
          if keyattr.instance_of?(Array)
            hash[key] = fold_array(value)
          else
            hash[key] = fold_array_by_name(key, value)
          end
          fold_amount += 1
        end
      }
    end
    fold_amount
  end