code: def test_get_scu(self, f1):
      f1.return_value = 0
      from monailabel.datastore.utils.dicom import get_scu
  
      get_scu("xyz", "abc")
  
imports: import os
  import tempfile
  import unittest
  from unittest.mock import patch
  from dicomweb_client import DICOMwebClient
label_desc: Use image node_id 2 for calling the TestDicom obj's underlying member method code with example usage: obj.test_get_scu(f1) without return types