Method with_create_subsession

crates/opencode-tool/src/tool.rs:428–437

(mut self, callback: F)

    }

    pub fn with_create_subsession<F, Fut>(mut self, callback: F) -> Self
    where
        F: Fn(String, Option<String>, Option<String>, Vec<String>) -> Fut + Send + Sync + 'static,
        Fut: std::future::Future<Output = Result<String, ToolError>> + Send + 'static,
    {
        self.create_subsession = Some(Arc::new(move |agent, title, model, disabled_tools| {
            Box::pin(callback(agent, title, model, disabled_tools))
        }));
        self
    }

    pub async fn do_create_subsession(
        &self,