Extending The Library To Other Objects

[yzhong52]

I notice that the library only support Numbers at the moment, which is great already! But have you consider extending it to other objects using templates maybe?

[fortinmike]

I have simply not felt the need for it. Do you have specific examples of something you would have expected Collector to do but that it didn't?

I'm open to pull requests if you feel like contributing. I'd only accept something "generic" enough to be useful to the majority, though.