private ConfigurableListableBeanFactory getConfigurableBeanFactory() {
        if (this.configurableBeanFactory == null) {
            this.configurableBeanFactory = ((ConfigurableApplicationContext) this.applicationContext).getBeanFactory();
        }
        return this.configurableBeanFactory;
    }
Lazy factory getter from the context for bean registration with {@link GrpcClientBean} annotations.

@return configurable bean factory
grpc-client-spring-boot-starter/src/main/java/net/devh/boot/grpc/client/inject/GrpcClientBeanPostProcessor.java