The discovery of a z=0.7092 OH megamaser with the MIGHTEE survey by Jarvis, MJ, Heywood, I, Jewell, S, Deane, RP, Klöckner, H-R, Ponomareva, A, Maddox, N, Baker, AJ, Bianchetti, A, Hess, KM, Roberts, H, Rodighiero, G, Ruffa, I, Sinigaglia, F, Varadaraj, R, Whittam, I, Adams, AKA, Baes, M, Murphy, EJ, Pan, H, Vaccari, M