code: def notify(self, clusters, centers):
          
          self.__evolution_clusters.append(clusters)
          self.__evolution_centers.append(centers)
docs: !
          @brief This method is called by K-Means algorithm to notify about changes.
          
          @param[in] clusters (array_like): Allocated clusters by K-Means algorithm.
          @param[in] centers (array_like): Allocated centers by K-Means algorithm.