Single int arg version of select.startAt()?

If one wants to start looking for a particular annotation at a given character position, then I think it would be convenient to be able to say "select(Token.class).startAt(offset)", instead of having to say "select(Token.class).startAt(offset, offset)".

What is not clear to me from reading the documentation is whether a Token which ends at offset would be returned or not. 

Another special case which is not clear by the documentation is whether a Token which starts and ends  at offset would be returned.