code: def testThreads_WrongType(self):
      with self.assertRaisesRegex(
          ValueError, "type of num_threads should be int"
      ):
          interpreter_wrapper.Interpreter(
              model_path=resource_loader.get_path_to_datafile(
                  "testdata/permute_float.tflite"
              ),
              num_threads=4.2,
          )
  
imports: import ctypes
  import io
  import sys
  from unittest import mock
  import numpy
  import tensorflow
  from tensorflow.lite.python import interpreter
  from tensorflow.lite.python.metrics import metrics
  from tensorflow.lite.python.testdata import _pywrap_test_registerer
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import resource_loader
  from tensorflow.python.platform import test
label_desc: Use image node_id 3 for calling the InterpreterTest obj's underlying member method code with example usage: obj.testThreads_WrongType() without return types