def METHOD_NAME(bunch, slice_set, line_density_testing=True):
    # Call all the properties / attributes / methods.
    slice_set.z_cut_head
    slice_set.z_cut_tail
    slice_set.z_centers
    slice_set.n_slices
    slice_set.slice_widths
    slice_set.slice_positions
    slice_set.n_macroparticles_per_slice
    slice_set.particles_within_cuts
    slice_set.particle_indices_by_slice
    # if line_density_testing:
    #     slice_set.line_density_derivative_gauss()
    #     slice_set.line_density_derivative()