So your library name kind of makes me think of a pop song that came out not too long ago, and all opinions aside, it doesn't immediately call out to me it's intention or purpose (see Call Me Maybe)
I think it maybe clearer to users of this library if the name were a bit more in line with it's function. In my company's API I've changed this to MaybeNull, but that's just an example.
Also, this clearly has nothing to do with the API, as I think it's really awesome. However, I thought I'd bring it to your attention, if perhaps, it is something you may not have considered.