Zero and negative sequence admittance matrices are not accessible anymore

[jbrouill]

The lines 564 to 572 of runpp_3ph.py (shown below) that were present in version 2.6.0 have been removed in or before version 2.9.0. As a result, the zero sequence and negative sequence admittance matrices are not accessible anymore after executing runpp_3ph. Is this wanted and there is an alternative way of accessing this or is it a bug?

ppci0["internal"]["Ybus"] = y_0_pu ppci1["internal"]["Ybus"] = y_1_pu ppci2["internal"]["Ybus"] = y_2_pu ppci0["internal"]["Yf"] = y_0_f ppci1["internal"]["Yf"] = y_1_f ppci2["internal"]["Yf"] = y_2_f ppci0["internal"]["Yt"] = y_0_t ppci1["internal"]["Yt"] = y_1_t ppci2["internal"]["Yt"] = y_2_t