code: func (s *State) resetGlobalCallbackMetrics(ctx context.Context) {
  	store := s.Store()
  
  	for _, cb := range s.GlobalCallbacks() {
  		for _, m := range cb.metrics {
  			store.Reset(ctx, m)
  		}
  	}
  }
docs: // resetGlobalCallbackMetrics resets metrics produced by global callbacks.
  //
  // See RegisterGlobalCallback for more info.