Update tools/code_interpreter_tools.py

tools/code_interpreter_tools.py

@@ -311,7 +311,7 @@ def execute_code_multilang(code: str, language: str = "python") -> str:
         code (str): the source code to execute
         language (str): the language of the code
     """
-    result = interpreter_instance.execute_code(code, language)
+    result = interpreter.execute_code(code, language)
     response = []
 
     if result["status"] == "success":