code: def test_rename_key(self, args, input_data):
      res = RenameKeyd(**args)(input_data)
      self.assertEqual(list(res.keys())[0], args["target_key"])
  
imports: import os
  import tempfile
  import unittest
  import numpy
  from parameterized import parameterized
  from monailabel.transform.post import BoundingBoxd, DumpImagePrediction2Dd, ExtremePointsd, FindContoursd, LargestCCd, MergeAllPreds, RenameKeyd, Restored
label_desc: Use image node_id 1 for calling the TestRenameKeyd obj's underlying member method code with example usage: obj.test_rename_key(args, input_data) without return types