g20s summits have had people
the g20 heads of government or heads of state have periodically conferred at summits since their initial meeting in 2008  and the group also hosts separate meetings of finance ministers and central bank governors
the term  head of government  is often differentiated from the term  head of state   lrb eg as in article 7 of the vienna convention on the law of treaties  article 1 of the convention on the prevention and punishment of crimes against internationally protected persons  including diplomatic agents and the united nations protocol list rrb  as they may be separate positions  individuals  andor roles depending on the country