Hello，when i run the code （difftaichi/example/liquid.py),the result save as binary rather than a gif or png，How to reproduce the effect of the paper or the result of the github ？
the difftaichi code：GitHub - taichi-dev/difftaichi: 10 differentiable physical simulators built with Taichi differentiable programming (DiffTaichi, ICLR 2020)
My version is 0.6.32