code: def global_stmt(self, global_loc, names):
          
          return ast.Global(names=list(map(lambda x: x.value, names)),
                            name_locs=list(map(lambda x: x.loc, names)),
                            keyword_loc=global_loc, loc=global_loc.join(names[-1].loc))
docs: global_stmt: 'global' NAME (',' NAME)*