Fixed attribute getter

src/operator/Slice.cpp

@@ -147,7 +147,7 @@ bool Aidge::Slice_Op::forwardDims(bool allowDataDependency) {
                             static_cast<DimSize_t>(this->ends()[i] + static_cast<DimSize_t>(getInput(0)->dims()[axis]));
             const std::int64_t step = this->steps()[i];
 
-            AIDGE_ASSERT(step != 0, "Slice_Op: Step ({}) must have a non-zero value on axis {}!", this->template getAttr<SliceAttr::Steps>(), axis);
+            AIDGE_ASSERT(step != 0, "Slice_Op: Step ({}) must have a non-zero value on axis {}!", this->steps(), axis);
             if(step * (static_cast<int64_t>(end) - static_cast<int64_t>(start)) < 0) {
                 if(step < 0) {
                     AIDGE_THROW_OR_ABORT(std::runtime_error, "{}: Step ({}) is negative, we must have End ({}) < Start ({}) on axis {}", type(), step, end, start, axis);