Type Alias ConvertToLlmFn 

pub type ConvertToLlmFn = Arc<dyn Fn(&[ChatMessage]) -> Vec<ChatMessage> + Send + Sync>;

Callback that transforms the message list before it is sent to the LLM.

The default implementation filters out ChatMessage::Custom variants because most providers don’t understand application-specific message types. Consumers can override this to inject custom serialization logic for their message types.

Aliased Type

pub struct ConvertToLlmFn { /* private fields */ }