code: def clear_items_sequential(self):
          
          # Implemented from template for osid.resource.ResourceForm.clear_group_template
          if (self.get_items_sequential_metadata().is_read_only() or
                  self.get_items_sequential_metadata().is_required()):
              raise errors.NoAccess()
          self._my_map['itemsSequential'] = self._items_sequential_default
docs: Clears the items sequential flag.
  
          raise:  NoAccess - ``Metadata.isRequired()`` or
                  ``Metadata.isReadOnly()`` is ``true``
          *compliance: mandatory -- This method must be implemented.*