code: def mock_upload_urls(
      project: str,
      files,
      run=None,
      entity=None,
      description=None,
  ):
      return (
          "some-bucket",
          [],
          {
              file: {"url": f"http://wandb-test/{file}"}
              for file in files
          },
      )
  
file_path: wandb/tests/pytest_tests/system_tests/test_artifacts/test_artifact_saver.py
imports: from unittest.mock import Mock
  import pytest
  from wandb.sdk.artifacts.artifact_saver import ArtifactSaver
  from wandb.sdk.internal import file_pusher, file_stream, internal_api
label_desc: Use image node_id 1 for calling a global function with example usage: mock_upload_urls(project, files, run, entity, description) and returns: str,  list,  unknown