UNEXPECTED EXCEPTION: IndexError('list index out of range')Traceback (most recent call last):  File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 224, in saving    yield self  File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 1126, in save    writer.grab_frame(**savefig_kwargs)  File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 499, in grab_frame    self._frame.append(im)AttributeError: 'PillowWriter' object has no attribute '_frame'. Did you mean: '_frames'?During handling of the above exception, another exception occurred:Traceback (most recent call last):  File "/home/runner/.local/share/uv/python/cpython-3.10.16-linux-x86_64-gnu/lib/python3.10/doctest.py", line 1350, in __run    exec(compile(example.source, filename, "single",  File "<doctest umf.images.diagrams.ClassicPlot[30]>", line 1, in <module>  File "/home/runner/work/useful-math-functions/useful-math-functions/umf/images/diagrams.py", line 335, in plot_save_gif    anim.save(filename=fname, writer="imagemagick", dpi=settings.dpi, **kwargs)  File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 1098, in save    with (writer.saving(self._fig, filename, dpi),  File "/home/runner/.local/share/uv/python/cpython-3.10.16-linux-x86_64-gnu/lib/python3.10/contextlib.py", line 153, in __exit__    self.gen.throw(typ, value, traceback)  File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 226, in saving    self.finish()  File "/home/runner/work/useful-math-functions/useful-math-functions/.venv/lib/python3.10/site-packages/matplotlib/animation.py", line 506, in finish    self._frames[0].save(IndexError: list index out of range/home/runner/work/useful-math-functions/useful-math-functions/umf/images/diagrams.py:73: UnexpectedException

https://github.com/Anselmoo/useful-math-functions/pull/84

AttributeError:'PillowWriter' object has no attribute'_frame'. Did you mean:'_frames'?

dependencies = ["numpy>=2.0.0,<3","pydantic>=2.0.0,<3","scipy>=1.11.2,<2",][project.optional-dependencies]matplotlib = ["matplotlib (>=3.10.0,<4.0.0)","imagemagic (>=0.2.1,<0.3.0)",]