[Python] How to show a matplotlib animation in Colab without also showing the plot?

In a Google Colab notebook, I'm building a matplotlib animation and I'm displaying it as HTML5 video. The last lines of my script are:

# ...
anim = animation.ArtistAnimation(plt.gcf(), frames,
interval=250, blit=True, repeat=False)
HTML(anim.to_html5_video())


The video looks alright, but then I get another image of the plot displayed below the video (showing the same thing as the last frame of the video). If I call plt.close() at the end, neither the plot nor the video gets displayed. How can I show the video without showing the plot?

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