code: def test_upload_success(self):
      n_data = len(self.api_workflow_client._mappings_api.sample_names)
      self.t_ester_upload_embedding(n_data=n_data)
      filepath_embeddings_sorted = os.path.join(
          self.folder_path, "embeddings_sorted.csv"
      )
      self.assertFalse(os.path.isfile(filepath_embeddings_sorted))
  
file_path: lightly/tests/api_workflow/test_api_workflow_upload_embeddings.py
imports: import os
  import tempfile
  import numpy
  from lightly.utils import io
  from tests.api_workflow.mocked_api_workflow_client import MockedApiWorkflowSetup
label_desc: Use image node_id 3 for calling the TestApiWorkflowUploadEmbeddings obj's underlying member method code with example usage: obj.test_upload_success() without return types