@class NSArray, NSString; @interface MAFlattenFeatureExtractor : MAFeatureExtractor { NSString *_name; NSArray *_featureNames; } @property (readonly, nonatomic) NSArray *featureExtractors; - (id)featureNames; - (void).cxx_destruct; - (id)name; - (id)initWithName:(id)a0 featureExtractors:(id)a1; - (id)defaultFloatVectorWithError:(id *)a0; - (id)floatMatrixWithEntities:(id)a0 progressReporter:(id)a1 error:(id *)a2; @end