[mubou]

There isn't a yes-or-no answer to this. Some things I would consider:

1. Does this add additional complexity? How much more time/effort would it take to implement the feature? And most importantly, how much added effort would it take to maintain the feature? (Would adding this feature become a burden later?)

2. Can we be sure that the feature, as we would implement it now with our limited information, will meet future requirements, or would we perhaps be implementing something one way only for it to turn out that it would have been better implemented another way once there's an actual, defined usecase for it? (Remember that once you add something to an API, it can be hard to change or remove it later.)