o [d_@sddlmZdddZdS)) filterfalseNccsft}|j}|durt|j|D] }|||VqdS|D]}||}||vr0|||VqdS)zHList unique elements, preserving order. Remember all elements ever seen.N)setaddr __contains__)iterablekeyseenseen_addelementkr 4/usr/lib/python3.10/importlib/metadata/_itertools.pyunique_everseensr)N) itertoolsrrr r r r s