What does this line do it is used in matplotlib

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matplotlib.use('agg')

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Hello Nimesh,



matplotlib can give out graphics in various formats. It can be the python/jupyter shell or even saved as a file. By selling the backend as "agg" we want the library to give out the output as a png file. Can read more about it here:  https://matplotlib.org/faq/usage_faq.html#what-is-a-backend