add push_to_hub to pipeline (#29172)

* add `push_to_hub` to pipeline

* fix docs

* format with ruff

* update save_pretrained

* update save_pretrained

* remove unnecessary comment

* switch to push_to_hub method in DynamicPipelineTester

* remove unused imports

* update docs for add_new_pipeline

* fix docs for add_new_pipeline

* add comment

* fix italien docs

* changes to token retrieval for pipelines

* Update src/transformers/pipelines/base.py

Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>

---------

Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>

tests/pipelines/test_pipelines_common.py

@@ -22,7 +22,7 @@ from pathlib import Path
 
 import datasets
 import numpy as np
-from huggingface_hub import HfFolder, Repository, create_repo, delete_repo
+from huggingface_hub import HfFolder, delete_repo
 from requests.exceptions import HTTPError
 
 from transformers import (
@@ -846,9 +846,6 @@ class DynamicPipelineTester(unittest.TestCase):
         model = BertForSequenceClassification(config).eval()
 
         with tempfile.TemporaryDirectory() as tmp_dir:
-            create_repo(f"{USER}/test-dynamic-pipeline", token=self._token)
-            repo = Repository(tmp_dir, clone_from=f"{USER}/test-dynamic-pipeline", token=self._token)
-
             vocab_file = os.path.join(tmp_dir, "vocab.txt")
             with open(vocab_file, "w", encoding="utf-8") as vocab_writer:
                 vocab_writer.write("".join([x + "\n" for x in self.vocab_tokens]))
@@ -860,7 +857,7 @@ class DynamicPipelineTester(unittest.TestCase):
             del PIPELINE_REGISTRY.supported_tasks["pair-classification"]
 
             classifier.save_pretrained(tmp_dir)
-            # checks
+            # checks if the configuration has been added after calling the save_pretrained method
             self.assertDictEqual(
                 classifier.model.config.custom_pipelines,
                 {
@@ -871,8 +868,8 @@ class DynamicPipelineTester(unittest.TestCase):
                     }
                 },
             )
-
-            repo.push_to_hub()
+            # use push_to_hub method to push the pipeline
+            classifier.push_to_hub(f"{USER}/test-dynamic-pipeline", token=self._token)
 
         # Fails if the user forget to pass along `trust_remote_code=True`
         with self.assertRaises(ValueError):