code: def test_add_model_s3_path(multi_data_model):
      uploaded_s3_path = multi_data_model.add_model(VALID_S3_URL)
  
      assert uploaded_s3_path == os.path.join(
          VALID_MULTI_MODEL_DATA_PREFIX, "output/model.tar.gz"
      )
      multi_data_model.s3_client.copy.assert_called()
      calls = [
          call(
              {
                  "Bucket": S3_URL_SOURCE_BUCKET,
                  "Key": S3_URL_SOURCE_PREFIX,
              },
              DST_BUCKET,
              "path/output/model.tar.gz",
          )
      ]
      multi_data_model.s3_client.copy.assert_has_calls(calls)
  
imports: from __future__ import absolute_import
  import os
  import pytest
  from mock import MagicMock, Mock, call, patch
  from sagemaker.multidatamodel import MULTI_MODEL_CONTAINER_MODE
  from sagemaker.multidatamodel import MultiDataModel
  from sagemaker.mxnet import MXNetModel, MXNetPredictor
label_desc: Use image node_id 12 for calling a global function with example usage: test_add_model_s3_path(multi_data_model) without return types