private List<StubTransformer> getStubTransformers() {
        if (this.stubTransformers == null) {
            final Collection<StubTransformer> transformers =
                    this.applicationContext.getBeansOfType(StubTransformer.class).values();
            this.stubTransformers = new ArrayList<>(transformers);
            return this.stubTransformers;
        }
        return this.stubTransformers;
    }
Lazy getter for the {@link StubTransformer}s.

@return The stub transformers to use.
grpc-client-spring-boot-starter/src/main/java/net/devh/boot/grpc/client/inject/GrpcClientBeanPostProcessor.java