# libtmux.neo.Obj.selection_start_y

- **Module:** libtmux.neo
- **Package:** libtmux
- **Language:** Python
- **Kind:** attribute
- **Source:** https://github.com/tmux-python/libtmux/blob/38e368c11117fb4aeb2f082d552cd4f210eae06a/src/libtmux/neo.py#L426
- **Page:** https://libtmux.org/en/py/stable/reference/libtmux-neo-obj-selection_start_y/

```py
libtmux.neo.Obj.selection_start_y: str | None = None
```