Update app.py

app.py

@@ -7,7 +7,7 @@ from langchain.text_splitter import (
 LABEL_TEXTSPLITTER = "LangChain's CharacterTextSplitter"
 LABEL_RECURSIVE = "Langchain's RecursiveCharacterTextSplitter"
 
-def extract_separators_from_string(separator_str):
+def extract_separators_from_string(separators_str):
     try:
         separators = separators_str[1:-1].split(", ")
         return [separator.replace('"', "").replace("'", "") for separator in separators]