# constrain_symmetric_rsketch ## API Definition ```python def constrain_symmetric_rsketch(sketch: Sketch, a: Union[SketchRef, str], b: Union[SketchRef, str], axis: Union[SketchRef, str], *, constraint_id: Optional[str] = None) -> Sketch ``` *Source: operations.py* ## Import Surface - top-level: `from simplecadapi import constrain_symmetric_rsketch` ## Description Constrain two sketch points to be symmetric about a line axis.