# libtmux._internal.query_list.lookup_in

- **Module:** libtmux._internal.query_list
- **Package:** libtmux
- **Language:** Python
- **Kind:** function
- **Source:** https://github.com/tmux-python/libtmux/blob/036c521c4b83ce6e434eb50afe2a0d08a6a05e46/src/libtmux/_internal/query_list.py#L238
- **Page:** https://libtmux.org/reference/py/libtmux-_internal-query_list-lookup_in/

```
libtmux._internal.query_list.lookup_in(data: str | list[str] | Mapping[str, str], rhs: str | list[str] | Mapping[str, str] | re.Pattern[str]) -> bool
```