pub trait ModelCaller: Send + Sync {
// Required method
fn call<'life0, 'life1, 'async_trait>(
&'life0 self,
model: &'life1 ModelId,
messages: Vec<Message>,
system_context: Option<SystemContext>,
cancel_token: CancellationToken,
) -> Pin<Box<dyn Future<Output = Result<Message, ModelCallError>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
}