//! Canonical GroupManagement service state type.
//!
//! Used by UPnP event streaming (via `into_state()`).
//! No `poll()` function — GroupManagement is an action-only service with no Get operations.
use ;
/// Complete GroupManagement service state.
///
/// Canonical type used by UPnP event streaming.
/// GroupManagement has no Get operations, so polling returns a stable empty state.