Struct ChatMLTemplate 

pub struct ChatMLTemplate;

ChatML template format (default).

<|im_start|>system
{system_prompt}<|im_end|>
<|im_start|>user
{message}<|im_end|>
<|im_start|>assistant

Trait Implementations

impl ChatTemplate for ChatMLTemplate

fn name(&self) -> &str

Template identifier (e.g., “chatml”, “llama3”, “mistral”).

fn format( &self, system_prompt: &str, messages: &[Message], tools: &[ToolSchema], ) -> String

Format a complete prompt from system prompt, messages, and tools.

fn format_system(&self, system_prompt: &str, tools: &[ToolSchema]) -> String

Format the system block (system prompt + tool definitions).

fn format_message(&self, message: &Message) -> String

Wrap a single conversation message in template markers. Returns empty string for system messages (handled by format_system).

fn assistant_prefix(&self) -> &str

The string appended after all messages to open the assistant’s turn.