community[patch]: small fixes to link extractors (#24528)

- **Description:** small fixes to imports / types in the link extraction
work

---------

Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>

libs/community/langchain_community/graph_vectorstores/extractors/__init__.py

@@ -6,22 +6,21 @@ from langchain_community.graph_vectorstores.extractors.hierarchy_link_extractor
     HierarchyInput,
     HierarchyLinkExtractor,
 )
+from langchain_community.graph_vectorstores.extractors.html_link_extractor import (
+    HtmlInput,
+    HtmlLinkExtractor,
+)
 from langchain_community.graph_vectorstores.extractors.keybert_link_extractor import (
     KeybertInput,
     KeybertLinkExtractor,
 )
-
-from .html_link_extractor import (
-    HtmlInput,
-    HtmlLinkExtractor,
-)
-from .link_extractor import (
+from langchain_community.graph_vectorstores.extractors.link_extractor import (
     LinkExtractor,
 )
-from .link_extractor_adapter import (
+from langchain_community.graph_vectorstores.extractors.link_extractor_adapter import (
     LinkExtractorAdapter,
 )
-from .link_extractor_transformer import (
+from langchain_community.graph_vectorstores.extractors.link_extractor_transformer import (  # noqa: E501
     LinkExtractorTransformer,
 )
 

libs/community/langchain_community/graph_vectorstores/extractors/link_extractor_transformer.py

@@ -1,4 +1,4 @@
-from typing import Any, Iterable, Sequence
+from typing import Any, Sequence
 
 from langchain_core.documents import Document
 from langchain_core.documents.transformers import BaseDocumentTransformer
@@ -21,7 +21,7 @@ class LinkExtractorTransformer(BaseDocumentTransformer):
             extract_links.transform_documents(docs)
     """
 
-    def __init__(self, link_extractors: Iterable[LinkExtractor[Document]]):
+    def __init__(self, link_extractors: Sequence[LinkExtractor[Document]]):
         """Create a DocumentTransformer which adds extracted links to each document."""
         self.link_extractors = link_extractors