[Python] How to combine multiple chatbot pipelines into 1 big pipeline using Haystack 2.X?

So in the past couple of months, I have created several chatbot pipelines using haystack 2.X. Here are a couple of chatbots that I have created:

1. Chatbot with RAG Documents from the database, with Conversation History awareness
2. Chatbot with RAG Documents from the database, with Conversation History awareness and image description context
3. Chatbot with web search tool
4. Chatbot with real-time data documents, like the public transport information and weather information

Then I want to combine all of those chatbot pipelines into 1 big pipeline. Is it possible? If its possible, how to do it?

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