enhancementhelp wanted
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Description
Currently our slice definition looks as follows:
pub fn slice<D: std::ops::RangeBounds<usize>>(&self, ranges: &[D]) -> anyhow::Result<Tensor> {
///...impl...
}
This is very user hostile, as the user must provide a homogeneous collection of ranges.
let y = x.slice(&[0..5, 0..6, 0..7]);
This is very annoying, as you may only care about one of the dimensions, it would be better to have something like
let y = x.slice(&[.., 0..6, ..]);
Unfortunately, this doesn't work, because the collection is now heterogeneous (i.e is made up of 2xRangeFull and 1xRange).
Therefore, we need to use a macro, much like ndarray.
let y = x.slice(s![.., 0..6, ..]);
This API gives the illusion of heterogeneous collections, which is what we want.