Method has_session

crates/openshell-server/src/supervisor_session.rs:200–202

(&self, sandbox_id: &str)

    }

    pub fn has_session(&self, sandbox_id: &str) -> bool {
        self.sessions.lock().unwrap().contains_key(sandbox_id)
    }

    fn pending_channel_ids(&self, sandbox_id: &str) -> Vec<String> {
        self.pending_relays