Harrison/format agent instructions (#973)

Co-authored-by: Andrew White <white.d.andrew@gmail.com>
Co-authored-by: Harrison Chase <harrisonchase@Harrisons-MBP.attlocal.net>
Co-authored-by: Peng Qu <82029664+pengqu123@users.noreply.github.com>

tests/integration_tests/test_pdf_pagesplitter.py

@@ -0,0 +1,19 @@
+"""Test splitting with page numbers included."""
+import os
+
+from langchain.document_loaders import PagedPDFSplitter
+from langchain.embeddings.openai import OpenAIEmbeddings
+from langchain.vectorstores import FAISS
+
+
+def test_pdf_pagesplitter() -> None:
+    """Test splitting with page numbers included."""
+    script_dir = os.path.dirname(__file__)
+    loader = PagedPDFSplitter(os.path.join(script_dir, "examples/hello.pdf"))
+    docs = loader.load()
+    assert "page" in docs[0].metadata
+    assert "source" in docs[0].metadata
+
+    faiss_index = FAISS.from_documents(docs, OpenAIEmbeddings())
+    docs = faiss_index.similarity_search("Complete this sentence: Hello", k=1)
+    assert "Hello world" in docs[0].page_content