langchain/docs/snippets/modules/chains/how_to/debugging.mdx

Setting `verbose` to `True` will print out some internal states of the `Chain` object while it is being ran.

```python
conversation = ConversationChain(
    llm=chat,
    memory=ConversationBufferMemory(),
    verbose=True
)
conversation.run("What is ChatGPT?")
```

<CodeOutputBlock lang="python">

```
    > Entering new ConversationChain chain...
    Prompt after formatting:
    The following is a friendly conversation between a human and an AI. The AI is talkative and provides lots of specific details from its context. If the AI does not know the answer to a question, it truthfully says it does not know.

    Current conversation:

    Human: What is ChatGPT?
    AI:

    > Finished chain.

    'ChatGPT is an AI language model developed by OpenAI. It is based on the GPT-3 architecture and is capable of generating human-like responses to text prompts. ChatGPT has been trained on a massive amount of text data and can understand and respond to a wide range of topics. It is often used for chatbots, virtual assistants, and other conversational AI applications.'
```

</CodeOutputBlock>