code: def list_current_filter_set(self,raw=False):
          
          
          buf = []
  
          self.open_umanager()
          self.ser.write(''.join((self.cmd_current_filter_list,self.cr)))
          if self.read_loop(lambda x: x.endswith(self.umanager_prompt),self.timeout,lambda x,y,z: buf.append(y.rstrip()[:-1])):
              if raw:
                  rv = buf = buf[0]
              else:
                  rv, buf = self.filter_organizer(buf[0])
          else:
              raise Dam1021Error(16,"Failed to list currently selected filter set")
          self.close_umanager()
  
          log.info(buf)
  
          return rv
docs: User to list a currently selected filter set