Llama2ChatFormat

class torchtune.data.Llama2ChatFormat

Chat format that formats human and system prompts with appropriate tags used in Llama2 pre-training. Taken from Meta’s official Llama inference repository.

"[INST] <<SYS>>
You are a helpful, respectful and honest assistant.
<</SYS>>"

I am going to Paris, what should I see? [/INST] Paris, the capital of France, is known for its stunning architecture..."

classmethod format(sample: List[Message]) → List[Message]

Format user and system messages with appropriate tags.

Parameters:

sample (List[Message]) – a single conversation, structured as a list of Message objects

Returns:

The formatted list of messages