Extract Pay Slip Data with Line Chatbot and Gemini to Google Sheets

Workflow Overview: Extract text from image using AI is worth because you need no code. It incorporates Google Gemini 2.0 Flash model for important text extraction from image. If you code without AI, you have to use multiple condition and may cause a lot of bug but with Google Gemini, you don't need any coding and if the Pay Slip is different, Gemini will extract it automatically. Workflow description: User uses Line Messaging API to send Pay Slip image or message to the chatbot, create Line Business ID from here: Line Business Classify the message which is image or text If the message is Pay Slip image, it will process using Gemini 2.0 Flash EXP and extract important information and response

Help me set up the n8n workflow "Extract Pay Slip Data with Line Chatbot and Gemini to Google Sheets" (https://n8n.io/workflows/3093). It uses: Google Sheets, HTTP Request, AI Agent, Basic LLM Chain, Simple Memory, Google Gemini Chat Model. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.