Move test imports to the top of the file

Author: anthony-etim

keras_hub/src/utils/preset_utils_test.py

@@ -3,6 +3,8 @@
 from unittest import mock
 
 import keras
+from huggingface_hub.utils import EntryNotFoundError
+from kagglehub.exceptions import KaggleApiHTTPError
 import pytest
 from absl.testing import parameterized
 
@@ -204,8 +206,6 @@ def test_get_file_raises_file_not_found(self):
             get_file(local_dir, fake_path)
 
     def test_kaggle_error_translation(self):
-        from kagglehub.exceptions import KaggleApiHTTPError
-
         preset = "kaggle://keras/bert/keras/bert_base_en"
         # Kaggle serves a missing file as a 404 and a gated file as a 403;
         # both translate to FileNotFoundError (check_file_exists relies on
@@ -223,8 +223,6 @@ def test_kaggle_error_translation(self):
                 get_file(preset, "vocabulary.json")
 
     def test_hf_missing_entry_translation(self):
-        from huggingface_hub.utils import EntryNotFoundError
-
         error = EntryNotFoundError("404 Client Error")
         with mock.patch("huggingface_hub.hf_hub_download", side_effect=error):
             with self.assertRaises(FileNotFoundError):