func (m *Nitro) GC() {
	if atomic.CompareAndSwapInt32(&m.isGCRunning, 0, 1) {
		m.collectDead()
		atomic.CompareAndSwapInt32(&m.isGCRunning, 1, 0)
	}
}
func (m *Nitro) GC() {
	if atomic.CompareAndSwapInt32(&m.isGCRunning, 0, 1) {
		m.collectDead()
		atomic.CompareAndSwapInt32(&m.isGCRunning, 1, 0)
	}
}
// GC implements manual garbage collection of Nitro snapshots.