o !Qd_@sddlmZdddZdS)) filterfalseNccsft}|j}|durt|j|D] }|||VqdS|D]}||}||vr0|||VqdS)zHList unique elements, preserving order. Remember all elements ever seen.N)setaddr __contains__)iterablekeyseenZseen_addZelementkr D/opt/alt/python310/lib64/python3.10/importlib/metadata/_itertools.pyunique_everseensr )N) itertoolsrr r r r r s