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Returns a value that indicates whether the sequence file can be removed from the internal cache of the engine.
The engine cannot unload a sequence file from the internal cache if multiple load references to it exist or if it is currently executing. Use this method to determine whether calling the Engine.ReleaseSequenceFileEx method would remove the file from the internal cache and return True.
|Note Even if this function returns True, the Engine.ReleaseSequenceFileEx method might return False if another thread added a load reference to this file between the calls to this method and the Engine.ReleaseSequenceFileEx method.|