def demo_GeometricConstraints_addConcentric(sketch: adsk.fusion.Sketch):
# Create two sketch circles.
entityOne = sketch.sketchCurves.sketchCircles.addByCenterRadius(adsk.core.Point3D.create(2, 3, 0),
radius = 3)
entityTwo = sketch.sketchCurves.sketchCircles.addByCenterRadius(adsk.core.Point3D.create(6, 12, 0),
radius = 2)
# Create a concentric constraint beween the circles.
constraints = sketch.geometricConstraints
concentricConstraint = constraints.addConcentric(entityOne, entityTwo)