@Nonnull
	private static Map<Class<? extends JvmClassTransformer>, JvmClassTransformer> buildMap(@Nonnull Collection<? extends JvmClassTransformer> transformers) {
		Map<Class<? extends JvmClassTransformer>, JvmClassTransformer> map = new IdentityHashMap<>();
		for (JvmClassTransformer transformer : transformers)
			map.put(transformer.getClass(), transformer);
		return Collections.unmodifiableMap(map);
	}
Used to check if a {@link ClassTransformer} did work after its {@code transform} has been executed with
this context being used as a parameter.

@return {@code true} if the last transformer ran did work with this context.
recaf-core/src/main/java/software/coley/recaf/services/transform/JvmTransformerContext.java