int sn_stage_show (sn_stage_t *s);
int sn_stage_invert (sn_stage_t *s);
+int sn_stage_shift (sn_stage_t *s, int sw, int inputs_num);
int sn_stage_swap (sn_stage_t *s, int con0, int con1);
int sn_stage_cut_at (sn_stage_t *s, int input, enum sn_network_cut_dir_e dir);
int sn_stage_remove_input (sn_stage_t *s, int input);