def convert_question_banks(question_categories)
      bank_converter = Moodle2CC::Moodle2Converter::QuestionBankConverter.new
      question_categories.map { |category| bank_converter.convert(category) }
    end
def convert_question_banks(question_categories)
      bank_converter = Moodle2CC::Moodle2Converter::QuestionBankConverter.new
      question_categories.map { |category| bank_converter.convert(category) }
    end
convert question categories to question banks