code: def _get_description(entry):
          
          description = None
          if entry is not None and 'textSectionList' in entry:
              textsectionlist = entry['textSectionList']
              for ts in textsectionlist:
                  if ts['textSection']['textSectionName'] == 'description':
                      description = ts['textSection']['textSectionContent']
                      # there are internal references to OMIM identifiers in
                      # the description, I am formatting them in our style.
                      description = re.sub(r'{(\d+)}', r'OMIM:\1', description)
  
                      # TODO
                      # reformat the citations in the description with PMIDs
                      break
  
          return description
docs: Get the description of the omim entity
          from the textSection called 'description'.
          Note that some of these descriptions have linebreaks.
          If printed in turtle syntax, they will appear to be triple-quoted.
          :param entry:
          :return: