What is the system_message for llama3 model?

[hahmad2008]

What is the official system message for llama3 model ( NousResearch/Meta-Llama-3-8B-Instruct)?

If I used the following in my code, however the system message is missing here:

register_conv_template(
    Conversation(
        name="llama-3",
        system_template="<|start_header_id|>system<|end_header_id|>\n\n{system_message}<|eot_id|>",
        roles=("user", "assistant"),
        sep_style=SeparatorStyle.LLAMA3,
        sep="",
        stop_str="<|eot_id|>",
        stop_token_ids=[128001, 128009],
    )
)