private boolean containsType(@Nonnull Class<? extends ClassTransformer> transformerClass) {
			return transformerTypes.contains(transformerClass);
		}
@param transformerClass
		Transformer type to check for,

@return {@code true} when the queue already has a transformer of that type registered.
recaf-core/src/main/java/software/coley/recaf/services/transform/TransformationApplier.java