# constrain_horizontal_rsketch

## API Definition

```python
def constrain_horizontal_rsketch(sketch: Sketch, line: Union[SketchRef, str], *, constraint_id: Optional[str] = None) -> Sketch
```

*Source: operations.py*

## Import Surface

- top-level: `from simplecadapi import constrain_horizontal_rsketch`

## Description

Constrain a sketch line to be horizontal.