How to use the raytracing.olympus.LUMPlanFL40X function in raytracing

Demo #17 - Vendor Lenses
'''


path = ImagingPath()
path.label = "Demo #17: Vendor Lenses"
path.append(Space(d=50))
path.append(thorlabs.AC254_050_A())
path.append(Space(d=50))
path.append(thorlabs.AC254_050_A())
path.append(Space(d=150))
path.append(eo.PN_33_921())
path.append(Space(d=50))
path.append(eo.PN_88_593())
path.append(Space(180))
path.append(olympus.LUMPlanFL40X())
path.append(Space(10))
path.display()

from raytracing import ImagingPath, Space, Lens, olympus

'''
#DEMO 15 - Path with LUMPlanFL40X
'''


path = ImagingPath()
path.fanAngle = 0.0
path.fanNumber = 1
path.rayNumber = 15
path.objectHeight = 10.0
path.label = "Demo #15 Path with LUMPlanFL40X"
path.append(Space(180))
path.append(olympus.LUMPlanFL40X())
path.display()

Demo #18 - Laser beam and vendor lenses
'''


path = LaserPath()
path.label = "Demo #18: Laser beam and vendor lenses"
path.append(Space(d=50))
path.append(thorlabs.AC254_050_A())
path.append(Space(d=50))
path.append(thorlabs.AC254_050_A())
path.append(Space(d=150))
path.append(eo.PN_33_921())
path.append(Space(d=50))
path.append(eo.PN_88_593())
path.append(Space(d=180))
path.append(olympus.LUMPlanFL40X())
path.append(Space(d=10))
path.display()

def __init__(self):
        super(LUMPlanFL40X, self).__init__(f=180/40, NA=0.8, focusToFocusLength=40, backAperture=7, workingDistance=2,
                                           label='LUMPlanFL40X',
                                           url="https://www.edmundoptics.com/p/olympus-lumplfln-40xw-objective/3901/")

path.objectHeight = 10.0
    path.label = "Path with generic objective"
    path.append(Space(180))
    path.append(obj)
    path.append(Space(10))
    path.display()""")
if 15 in examples:
    # Demo #15: Olympus objective LUMPlanFL40X
    path = ImagingPath()
    path.fanAngle = 0.0
    path.fanNumber = 1
    path.rayNumber = 15
    path.objectHeight = 20
    path.label = "Demo #15 Path with LUMPlanFL40X"
    path.append(Space(180))
    path.append(olympus.LUMPlanFL40X())
    path.display(comments=path.label + """
    path = ImagingPath()
    path.fanAngle = 0.0
    path.fanNumber = 1
    path.rayNumber = 15
    path.objectHeight = 10.0
    path.label = "Path with LUMPlanFL40X"
    path.append(Space(180))
    path.append(olympus.LUMPlanFL40X())
    path.append(Space(10))
    path.display()""")
if 16 in examples:
    # Demo #16: Vendor lenses
    thorlabs.AC254_050_A().display()
    eo.PN_33_921().display()
if 17 in examples: