code: def clark(self, databasepath):
          
          if self.clarkpath:
              logging.info('Downloading CLARK database')
              # Create the folder in which the database is to be stored
              databasepath = self.create_database_folder(databasepath, 'clark')
              # Set the call to create the database - use the --light option, as we don't require the full database
              targetcall = 'cd {clarkpath} && ../opt/clark/set_targets.sh {dbpath} bacteria --species --light'\
                  .format(clarkpath=self.clarkpath,
                          dbpath=databasepath)
              # Download the database
              self.database_clone(targetcall, databasepath)
          else:
              logging.warning('No CLARK scripts detected in $PATH. Cannot download database.')
docs: Download and set-up the CLARK database using the set_targets.sh script. Use defaults of bacteria for database
          type, and species for taxonomic level
          :param databasepath: path to use to save the database