Update main.py

main.py

@@ -23,7 +23,7 @@ import uvicorn
 from langchain_core.prompts import ChatPromptTemplate
 from langchain_core.tools import tool
 from langchain_google_genai import ChatGoogleGenerativeAI
-from langchain.agents import create_react_agent, AgentExecutor, create_tool_calling_agent
+from langchain.agents import AgentExecutor, create_tool_calling_agent
 
 
 # ==========================
@@ -173,7 +173,7 @@ tools = [generate_and_upload_image, analyze_image_with_text]
 llm = ChatGoogleGenerativeAI(google_api_key=google_api, model="gemini-2.5-flash", temperature=0.2)
 
 # 建立提示模板
-prompt_template = ChatPromptTemplate.from_messages([
+prompt_template = ChatPromptTemplate([
     ("system", "你是一個強大的助理，可以根據用戶的請求使用提供的工具。"),
     ("user", "{input}"),
     ("placeholder", "{agent_scratchpad}"),
@@ -245,11 +245,9 @@ def handle_message(event):
             # 運行代理人
             response = agent_executor.invoke(agent_input)
             out = response["output"]
-            print('out')
             if 'https' in out:
                 img_tmp = 'https'+out.split('https')[1]
                 image_url = img_tmp.split('png')[0]+'png'
-                print('image_url',image_url)
                 line_bot_api.push_message(
                     event.source.user_id,
                     [