Update agent.py

agent.py

@@ -342,7 +342,7 @@ class BasicAgent:
                 - If Task ID is included in the question, remember to call the relevant read tools [ie. read_file, excel_read, csv_read, mp3_listen, image_caption]
                 - python_tool is called when the question mentions the term "Python" or any math calculation.
         """
-        FORMAT_INSTRUCTION = """
+        FORMAT_INSTRUCTIONS = """
                 To use a tool, use the following format:
                 Thought: Do I need to use a tool? Yes
                 Action: the action to take, should be one of [{tool_names}]