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//! The system cursors a host can show. Flutter's engine receives these as `kind` strings on
//! `SystemChannels.mouseCursor` (`services/mouse_cursor.dart`); there is no channel here, so
//! the kind is an enum.
/// A system cursor kind (`SystemMouseCursor.kind`). The host maps each to its native cursor and
/// shows the basic arrow for one it lacks; [`None`](Self::None) hides the cursor.