docs: def p_iteration_statement_5(self, p):
          """
          iteration_statement : \
              FOR LPAREN VAR identifier IN expr RPAREN statement
          """
          vardecl = self.asttypes.VarDeclNoIn(identifier=p[4])
          vardecl.setpos(p, 3)
          p[0] = self.asttypes.ForIn(item=vardecl, iterable=p[6], statement=p[8])
          p[0].setpos(p)