Declaration

func append(_ pen: (any GSPenProtocol & NSObjectProtocol)!)

Declaration

- (void) append:(NSObject<GSPenProtocol> *) pen;

Declaration

append_(pen: NSObject<GSPenProtocol>)

Discussion

Requires that the other pen is of the same type as this pen in the general case. Specific pen implementations may also accept pen arguments of other types.