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    * pandas.Series.cat.remove_unused_categories 
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  * pandas.Serie... 

#  pandas.Series.cat.remove_unused_categories  #

Series.cat.  remove_unused_categories  (  _ *  args  _ , _ **  kwargs  _ )  [
[source]  ](https://github.com/pandas-
dev/pandas/blob/v2.2.1/pandas/core/accessor.py#L111-L112) #

    

Remove categories which are not used.

Returns