code: def write_review(review, out):
      
      out.write('# Review\n\n')
      write_value('Reviewer', review.reviewer, out)
      write_value('ReviewDate', review.review_date_iso_format, out)
      if review.has_comment:
          write_text_value('ReviewComment', review.comment, out)
docs: Write the fields of a single review to out.