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Specifies values that indicate whether a compression operation emphasizes speed or compression size.
Fastest: 1;
The compression operation should complete as quickly as possible, even if the result is not optimally compressed.
NoCompression: 2;
No compression should be performed.
Optimal: 0;
The compression operation should optimally balance compression speed and output size.
SmallestSize: 3;
The compression operation should create output as small as possible, even if the operation takes a longer time to complete.