code: def test_value(self, input_param, data, expected_value):
      result = MeanEnsembled(**input_param)(data)
      assert_allclose(result["output"], expected_value)
  
file_path: MONAI/tests/test_mean_ensembled.py
imports: from __future__ import annotations
  import unittest
  import numpy
  import torch
  from parameterized import parameterized
  from monai.transforms import MeanEnsembled
  from tests.utils import TEST_NDARRAYS, assert_allclose
label_desc: Use image node_id 1 for calling the TestMeanEnsembled obj's underlying member method code with example usage: obj.test_value(input_param, data, expected_value) without return types