Total segmentator in 3d Slicer with python script

Hi there, I am trying to write a python script that uses Totalsegmentator in 3dSlicer, but so far I am not able to make good progress. The aim of using it in 3dslicer instead of standalone is to be able to exctract SUV values from pet data later using the same script. So far the import seems to work, but I wasn`t able to figure out how to call totalsegmentator. Also, since the DICOM includes ct and pet files, the script should figure out which of the files (=CT) to use as input (?)
So far my script is as follows, can someone help me out how to continue from here?

import os
import sys
import TotalSegmentator
from DICOMLib import DICOMUtils

dicomDataDir = “C:/Users/user1/sample/dicom” # input folder with DICOM files

Check if the folder exists

if not os.path.exists(dicomDataDir):
sys.exit(“Aborting the script. Folder is required.”)

loadedNodeIDs =

with DICOMUtils.TemporaryDICOMDatabase() as db:
DICOMUtils.importDicom(dicomDataDir, db)
patientUIDs = db.patients()
for patientUID in patientUIDs:
loadedNodeIDs.extend(DICOMUtils.loadPatientByUID(patientUID))

slicer.util.selectModule(“TotalSegmentator”)