namespace AosTraits {

/*! \ingroup PkgArrangementOnSurface2ConceptsGeometricObjects
 * \cgalConcept
 *
 * Represents a planar (weakly) \f$x\f$-monotone curve.
 *
 * \cgalRefines{CopyConstructible,Assignable,DefaultConstructible}
 *
 * \cgalHasModelsBegin
 * \cgalHasModels{AosBasicTraits_2::X_monotone_curve_2}
 * \cgalHasModelsEnd
 */
class XMonotoneCurve_2 {};

}
