refactor: Make direct_transformers_import util (#21652)

* refactor: Make direct_import util

* edit direct import fn

* add docstring

* make import function specific to transformers only

* edit doc string

utils/check_task_guides.py

@@ -14,9 +14,9 @@
 # limitations under the License.
 
 import argparse
-import importlib.util
 import os
-import sys
+
+from transformers.utils import direct_transformers_import
 
 
 # All paths are set with the intent you should run this script from the root of the repo with the command
@@ -52,14 +52,7 @@ def _find_text_in_file(filename, start_prompt, end_prompt):
 
 
 # This is to make sure the transformers module imported is the one in the repo.
-spec = importlib.util.spec_from_file_location(
-    "transformers",
-    os.path.join(TRANSFORMERS_PATH, "__init__.py"),
-    submodule_search_locations=[TRANSFORMERS_PATH],
-)
-transformers_module = importlib.util.module_from_spec(spec)
-spec.loader.exec_module(transformers_module)
-transformers_module = sys.modules["transformers"]
+transformers_module = direct_transformers_import(TRANSFORMERS_PATH)
 
 TASK_GUIDE_TO_MODELS = {
     "asr.mdx": transformers_module.models.auto.modeling_auto.MODEL_FOR_CTC_MAPPING_NAMES,