def demo_Arcs_addByCenterStartSweep(sketch: adsk.fusion.Sketch):
# Define two points and specify the sweep angle
startPoint = adsk.core.Point3D.create(5, 5, 0)
centerPoint = adsk.core.Point3D.create(15, 0, 0)
sweepAngle = -135.0
# Create an arc centered at the specified point
arcs = sketch.sketchCurves.sketchArcs
arc = arcs.addByCenterStartSweep(centerPoint, startPoint, sweepAngle)