code: def _initialized_adjustments(self, prstGeom):
          
          if prstGeom is None:
              return []
          davs = AutoShapeType.default_adjustment_values(prstGeom.prst)
          adjustments = [Adjustment(name, def_val) for name, def_val in davs]
          self._update_adjustments_with_actuals(adjustments, prstGeom.gd_lst)
          return adjustments
docs: Return an initialized list of adjustment values based on the contents
          of *prstGeom*