def _ensure_array_node(self):
    if (not isinstance(self.node, ArrayNode)):
        tmp = self.node
        self.node = self._new_node()
        self.node.args.arguments += [tmp]
def _ensure_array_node(self):
    if (not isinstance(self.node, ArrayNode)):
        tmp = self.node
        self.node = self._new_node()
        self.node.args.arguments += [tmp]