text: import cadquery as cq
  
  # 1.  Establishes a workplane to create the spline on to extrude.
  # 1a. Uses the X and Y origins to define the workplane, meaning that the
  # positive Z direction is "up", and the negative Z direction is "down".
  s = cq.Workplane("XY")
  
  # The points that the spline will pass through
  sPnts = [
      (2.75, 1.5),
      (2.5, 1.75),
      (2.0, 1.5),
      (1.5, 1.0),
      (1.0, 1.25),
      (0.5, 1.0),
      (0, 1.0),
  ]
  
  # 2.  Generate our plate with the spline feature and make sure it is a
  #     closed entity
  r = s.lineTo(3.0, 0).lineTo(3.0, 1.0).spline(sPnts).close()
  
  # 3.  Extrude to turn the wire into a plate
  result = r.extrude(0.5)
  
  # Displays the result of this script
  show_object(result)
  