ext/torch/ext.cpp in torch-rb-0.3.5 vs ext/torch/ext.cpp in torch-rb-0.3.6

@@ -300,15 +300,10 @@
         std::copy(s.begin(), s.end(), std::back_inserter(v));
         // https://github.com/pytorch/pytorch/issues/20356#issuecomment-567663701
         return torch::pickle_load(v);
       })
     .define_singleton_method(
-      "_binary_cross_entropy_with_logits",
-      *[](const Tensor &input, const Tensor &target, OptionalTensor weight, OptionalTensor pos_weight, MyReduction reduction) {
-        return torch::binary_cross_entropy_with_logits(input, target, weight, pos_weight, reduction);
-      })
-    .define_singleton_method(
       "_from_blob",
       *[](String s, IntArrayRef size, const torch::TensorOptions &options) {
         void *data = const_cast<char *>(s.c_str());
         return torch::from_blob(data, size, options);
       })
@@ -376,14 +371,9 @@
       })
     .define_method(
       "_requires_grad!",
       *[](Tensor& self, bool requires_grad) {
         return self.set_requires_grad(requires_grad);
-      })
-    .define_method(
-      "_backward",
-      *[](Tensor& self, OptionalTensor gradient, bool create_graph, bool retain_graph) {
-        return self.backward(gradient, create_graph, retain_graph);
       })
     .define_method(
       "grad",
       *[](Tensor& self) {
         auto grad = self.grad();