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Creates and returns a new SequenceFile object.
Call the Engine.ReleaseSequenceFileEx method on this object before you release it.
This method stores the new sequence file in the internal cache of the engine and adds a load reference to the sequence file. TestStand uses the load reference count to determine when to unload the sequence file from the internal cache of the engine. In addition to this method, the SequenceFile.AddLoadReference and Engine.GetSequenceFileEx methods add a load reference to the sequence file. The Engine.ReleaseSequenceFileEx method removes a load reference.
You must call Engine.ReleaseSequenceFileEx for each load reference you add to the sequence file. When you release the last load reference, TestStand unloads the file from the internal cache of the engine. While unloading the file from the internal cache of the engine, TestStand executes the SequenceFileUnload callback sequence, if applicable.