code: def set_output_score(self, score):
          
          # Implemented from template for osid.grading.GradeSystemForm.set_lowest_numeric_score
          if self.get_output_score_metadata().is_read_only():
              raise errors.NoAccess()
          try:
              score = float(score)
          except ValueError:
              raise errors.InvalidArgument()
          if not self._is_valid_decimal(score, self.get_output_score_metadata()):
              raise errors.InvalidArgument()
          self._my_map['outputScore'] = score
docs: Sets the output score.
  
          arg:    score (decimal): the new output score
          raise:  InvalidArgument - ``score`` is invalid
          raise:  NoAccess - ``score`` cannot be modified
          *compliance: mandatory -- This method must be implemented.*