code: def add_info(self, info_id, number, entry_type, description):
          
          info_line = '##INFO=<ID={0},Number={1},Type={2},Description="{3}">'.format(
              info_id, number, entry_type, description
          )
          self.logger.info("Adding info line to vcf: {0}".format(info_line))
          self.parse_meta_data(info_line)
          return
docs: Add an info line to the header.
          
          Arguments:
              info_id (str): The id of the info line
              number (str): Integer or any of [A,R,G,.]
              entry_type (str): Any of [Integer,Float,Flag,Character,String]
              description (str): A description of the info line