Method is_dynamic

src/op/builder/convolution.cpp:117–123

    }

    bool is_dynamic(const shape& s) const
    {
        return s.dynamic() and
               std::any_of(s.dyn_dims().begin() + 2, s.dyn_dims().end(), [](const auto& dyn_dim) {
                   return not dyn_dim.is_fixed();
               });
    }

    operation make_conv_op(const std::string& name) const
    {