class UmlSequenceDiagramDefinition
!!!138244.cpp!!!	write(inout out : FileOut, in diag : UmlItem) : void
  UmlMessage::write_connectors(out, diag, 
			       (const QVector<UmlMessage>&) messages());
  UmlClassInstanceReference::write_lifelines(out, diag, instances());
  UmlSequenceMessage::write(out, diag, messages());

