change equal conditional to ==

app.py

@@ -75,7 +75,7 @@ def clean_json_string(json_str):
     return json_str
 
 def model_call(question, document, answer):
-    if question === "" or document === "" or answer === "":
+    if question == "" or document == "" or answer == "":
         return "", ""
     NEW_FORMAT = PROMPT.format(question=question, document=document, answer=answer)
     print("ENTIRE NEW_FORMAT", NEW_FORMAT)