If you're lazy like me, just use `jq` from the command line:
```bash
echo 'your_json' | jq '.. | .a? // empty'
```
Not pure Python, but saves time. For Python, `jsonpath-ng` is solid too.
```bash
echo 'your_json' | jq '.. | .a? // empty'
```
Not pure Python, but saves time. For Python, `jsonpath-ng` is solid too.
