Test if the current statement is a type of list, used in for loops.

def _is_list_iter(self):
        """
        Test if the current statement is a type of list, used in for loops.
        """

        # Check for literal or memory list.
        iter_var_type = (
            self.context.vars.get(self.stmt.iter.id).typ
            if isinstance(self.stmt.iter, ast.Name)
            else None
        )
        if isinstance(self.stmt.iter, ast.List) or isinstance(iter_var_type, ListType):
            return True

        # Check for storage list.
        if isinstance(self.stmt.iter, ast.Attribute):
            iter_var_type = self.context.globals.get(self.stmt.iter.attr)
            if iter_var_type and isinstance(iter_var_type.typ, ListType):
                return True

        return False