docs: def set_sequestered(self, sequestered):
          """Sets the sequestered flag.
  
          arg:    sequestered (boolean): the new sequestered flag
          raise:  InvalidArgument - ``sequestered`` is invalid
          raise:  NoAccess - ``Metadata.isReadOnly()`` is ``true``
          *compliance: mandatory -- This method must be implemented.*
  
          """
          if sequestered is None:
              raise errors.NullArgument()
          if self.get_sequestered_metadata().is_read_only():
              raise errors.NoAccess()
          if not isinstance(sequestered, bool):
              raise errors.InvalidArgument()
          self._my_map['sequestered'] = sequestered