object TLEPropagator has no attribute propagateOrbit

Hello,

I am trying to convert a TLEPropagator into an Orbit object. According to the documentation, the class TLEPropagator has the method propagateOrbit(). So I tried running this code :

tle_line1 = "1 25544U 98067A   21053.51807521  .00000772  00000-0  22177-4 0  9999"
tle_line2 = "2 25544  51.6419 189.8908 0002837  41.7871  41.3389 15.48986950270821"
tle_ISS = TLE(tle_line1, tle_line2)
propagator = TLEPropagator.selectExtrapolator(tle_ISS)

orbit = propagator.propagateOrbit()

but this results in the following error AttributeError: 'TLEPropagator' object has no attribute 'propagateOrbit'

Is there a trick that I don't know about ? Am I wrong somewhere ? Thanks, have a good day