Method std

src/python/lfs/py_tensor.cpp:1095–1100

    }

    PyTensor PyTensor::std(std::optional<int> dim, bool keepdim) const {
        if (dim.has_value()) {
            return PyTensor(tensor_.std(*dim, keepdim));
        }
        return PyTensor(tensor_.std());
    }

    PyTensor PyTensor::var(std::optional<int> dim, bool keepdim) const {
        if (dim.has_value()) {