add histogram, metadata and bar chart for basic rag

Author: strickvl

llm-complete-guide/pipelines/llm_basic_rag.py

@@ -38,6 +38,6 @@ def llm_basic_rag() -> None:
     """
     urls = url_scraper()
     docs = web_url_loader(urls=urls)
-    processed_docs = preprocess_documents(documents=docs)
+    processed_docs, _, _ = preprocess_documents(documents=docs)
     embedded_docs = generate_embeddings(split_documents=processed_docs)
     index_generator(documents=embedded_docs)