MAINT blackify plot_kmeans_assumptions (#24938)
MAINT blackify plot_kmeans_assumptions (#24938)


scikit-learn/scikit-learn,betatim/scikit-learn,betatim/scikit-learn,betatim/scikit-learn,betatim/scikit-learn,scikit-learn/scikit-learn,scikit-learn/scikit-learn,scikit-learn/scikit-learn