public _FetchHandler(Graph graph, object fetches, Dictionary <object, object> feeds = null, Action feed_handles = null)
{
_fetch_mapper = _FetchMapper.for_fetch(fetches);
foreach (var fetch in _fetch_mapper.unique_fetches())
{
switch (fetch)
{
case Operation val:
_assert_fetchable(graph, val);
_targets.Add(val);
_ops.Add(true);
break;
case Tensor val:
_assert_fetchable(graph, val.op);
_fetches.Add(val);
_ops.Add(false);
break;
default:
throw new NotImplementedException("_FetchHandler fetch");
}
}
_final_fetches = _fetches;
}