NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean NSNegateBoolean 0 NSNegateBoolean 0 NSNegateBoolean NSNegateBoolean 0 NSNegateBoolean 0 NSNegateBoolean HBCustomFilterTransformer HBCustomFilterTransformer HBCustomFilterTransformer HBCustomFilterTransformer HBCustomFilterTransformer HBCustomFilterTransformer HBDenoiseTransformer HBDenoisePresetTransformer HBDenoiseTuneTransformer NSIsNil NSIsNil NSIsNotNil