Update app.py

app.py

@@ -136,8 +136,8 @@ def parse_json(inp):
     if type(inp)==type(""):
         lines=""
         if "```" in inp:
-            start = string.find("```json") + 1  # Find index after the start character
-            end = string.find("```", start)  # Find index of end character from the start index
+            start = inp.find("```json") + 1  # Find index after the start character
+            end = inp.find("```", start)  # Find index of end character from the start index
             if start >= 0 and end >= 0:
                 json1= string[start:end]  # Slice the string between start and end
             else: