code: func (s *MemoryStore) Wedged() bool {
  	lockedAt := s.updateLock.LockedAt()
  	if lockedAt.IsZero() {
  		return false
  	}
  
  	return time.Since(lockedAt) > WedgeTimeout
  }
docs: // Wedged returns true if the store lock has been held for a long time,
  // possibly indicating a deadlock.