code: def set_display_columns(self, set_true=[], set_false=[]):
          
          for i in range(len(self.fields)):
              if self.fields[i].name in set_true:
                  self.fields[i].display = True
              elif self.fields[i].name in set_false:
                  self.fields[i].display = False
docs: Add or remove columns from the output.