unzip

import mir.ndslice.allocation : slice;
import mir.ndslice.topology : iota;

auto alpha = iota!int(4, 3);
auto beta = iota!int([4, 3], 1).slice;

auto m = zip(alpha, beta);

static assert(is(typeof(unzip!'a'(m)) == typeof(alpha)));
static assert(is(typeof(unzip!'b'(m)) == typeof(beta)));

assert(m.unzip!'a' == alpha);
assert(m.unzip!'b' == beta);