code: public Interceptors addGlobalServiceInterceptor(Interceptor globalServiceInterceptor) {
  		if (globalServiceInterceptor == null) {
  			throw new IllegalArgumentException("globalServiceInterceptor can not be null.");
  		}
  		InterceptorManager.me().addGlobalServiceInterceptor(globalServiceInterceptor);
  		return this;
  	}
docs: Add the global service interceptor to intercept all the method enhanced by aop Enhancer.