docs: update apify integration (#29553)

**Description:** Fixed and updated Apify integration documentation to
use the new [langchain-apify](https://github.com/apify/langchain-apify)
package.
**Twitter handle:** @apify

libs/community/langchain_community/document_loaders/apify_dataset.py

@@ -1,11 +1,22 @@
 from typing import Any, Callable, Dict, List
 
+from langchain_core._api import deprecated
 from langchain_core.documents import Document
 from pydantic import BaseModel, model_validator
 
 from langchain_community.document_loaders.base import BaseLoader
 
 
+@deprecated(
+    since="0.3.18",
+    message=(
+        "This class is deprecated and will be removed in a future version. "
+        "You can swap to using the `ApifyDatasetLoader`"
+        " implementation in `langchain_apify` package. "
+        "See <https://github.com/apify/langchain-apify>"
+    ),
+    alternative_import="langchain_apify.ApifyDatasetLoader",
+)
 class ApifyDatasetLoader(BaseLoader, BaseModel):
     """Load datasets from `Apify` web scraping, crawling, and data extraction platform.
 

libs/community/langchain_community/utilities/apify.py

@@ -1,5 +1,6 @@
 from typing import TYPE_CHECKING, Any, Callable, Dict, Optional
 
+from langchain_core._api import deprecated
 from langchain_core.documents import Document
 from langchain_core.utils import get_from_dict_or_env
 from pydantic import BaseModel, model_validator
@@ -8,6 +9,16 @@ if TYPE_CHECKING:
     from langchain_community.document_loaders import ApifyDatasetLoader
 
 
+@deprecated(
+    since="0.3.18",
+    message=(
+        "This class is deprecated and will be removed in a future version. "
+        "You can swap to using the `ApifyWrapper`"
+        " implementation in `langchain_apify` package. "
+        "See <https://github.com/apify/langchain-apify>"
+    ),
+    alternative_import="langchain_apify.ApifyWrapper",
+)
 class ApifyWrapper(BaseModel):
     """Wrapper around Apify.
     To use, you should have the ``apify-client`` python package installed,

libs/packages.yml

@@ -386,6 +386,10 @@ packages:
   repo: Nimbleway/langchain-nimble
   path: .
   downloads: 0
+- name: langchain-apify
+  path: .
+  repo: apify/langchain-apify
+  downloads: 204
 - name: langfair
   repo: cvs-health/langfair
   path: .