chore: import upstream snapshot with attribution

haystack/components/preprocessors/__init__.py

@@ -0,0 +1,38 @@
+# SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
+#
+# SPDX-License-Identifier: Apache-2.0
+
+import sys
+from typing import TYPE_CHECKING
+
+from lazy_imports import LazyImporter
+
+_import_structure = {
+    "csv_document_cleaner": ["CSVDocumentCleaner"],
+    "csv_document_splitter": ["CSVDocumentSplitter"],
+    "document_cleaner": ["DocumentCleaner"],
+    "document_preprocessor": ["DocumentPreprocessor"],
+    "document_splitter": ["DocumentSplitter"],
+    "embedding_based_document_splitter": ["EmbeddingBasedDocumentSplitter"],
+    "hierarchical_document_splitter": ["HierarchicalDocumentSplitter"],
+    "markdown_header_splitter": ["MarkdownHeaderSplitter"],
+    "python_code_splitter": ["PythonCodeSplitter"],
+    "recursive_splitter": ["RecursiveDocumentSplitter"],
+    "text_cleaner": ["TextCleaner"],
+}
+
+if TYPE_CHECKING:
+    from .csv_document_cleaner import CSVDocumentCleaner as CSVDocumentCleaner
+    from .csv_document_splitter import CSVDocumentSplitter as CSVDocumentSplitter
+    from .document_cleaner import DocumentCleaner as DocumentCleaner
+    from .document_preprocessor import DocumentPreprocessor as DocumentPreprocessor
+    from .document_splitter import DocumentSplitter as DocumentSplitter
+    from .embedding_based_document_splitter import EmbeddingBasedDocumentSplitter as EmbeddingBasedDocumentSplitter
+    from .hierarchical_document_splitter import HierarchicalDocumentSplitter as HierarchicalDocumentSplitter
+    from .markdown_header_splitter import MarkdownHeaderSplitter as MarkdownHeaderSplitter
+    from .python_code_splitter import PythonCodeSplitter as PythonCodeSplitter
+    from .recursive_splitter import RecursiveDocumentSplitter as RecursiveDocumentSplitter
+    from .text_cleaner import TextCleaner as TextCleaner
+
+else:
+    sys.modules[__name__] = LazyImporter(name=__name__, module_file=__file__, import_structure=_import_structure)