code: def test_guess_mime_type_on_windows(file_path, expected_mime_type):
      assert _guess_mime_type(file_path) == expected_mime_type
  
imports: import pytest
  from mlflow.utils.mime_type_utils import _guess_mime_type
  from mlflow.utils.os import is_windows
label_desc: Use image node_id 2 for calling a global function with example usage: test_guess_mime_type_on_windows(file_path, expected_mime_type) without return types