def METHOD_NAME(self):
    '''
    *Histrogram generated by calling an optimized C++ function that
    calculates all the profile at once.*
    '''
    bm.sparse_histogram(self.Beam.dt, self.n_macroparticles_array,
                        self.cut_left_array, self.cut_right_array,
                        self.bunch_indexes, self.n_slices_bucket)