code: def test_shape(self, input_param, input_data, expected_shape):
      result = RepeatChanneld(**input_param)(input_data)
      self.assertEqual(result["img"].shape, expected_shape)
  
file_path: MONAI/tests/test_repeat_channeld.py
imports: from __future__ import annotations
  import unittest
  import numpy
  from parameterized import parameterized
  from monai.transforms import RepeatChanneld
  from tests.utils import TEST_NDARRAYS
label_desc: Use image node_id 1 for calling the TestRepeatChanneld obj's underlying member method code with example usage: obj.test_shape(input_param, input_data, expected_shape) without return types