fixing chunk size + overlap

documents_prep.py

@@ -8,7 +8,12 @@ from llama_index.core.text_splitter import SentenceSplitter
 from config import CHUNK_SIZE, CHUNK_OVERLAP
 
 
-def chunk_document(doc, chunk_size=CHUNK_SIZE, chunk_overlap=CHUNK_OVERLAP):
+def chunk_document(doc, chunk_size=None, chunk_overlap=None):
+    if chunk_size is None:
+        chunk_size = CHUNK_SIZE
+    if chunk_overlap is None:
+        chunk_overlap = CHUNK_OVERLAP
+        
     text_splitter = SentenceSplitter(
         chunk_size=chunk_size,
         chunk_overlap=chunk_overlap,