def insert_cluster(self, cluster):
entry = cfentry(len(cluster), linear_sum(cluster), square_sum(cluster));<EOL>self.insert(entry)<EOL>
!
        @brief Insert cluster that is represented as list of points where each point is represented by list of coordinates.
        @details Clustering feature is created for that cluster and inserted to the tree.

        @param[in] cluster (list): Cluster that is represented by list of points that should be inserted to the tree.