@Value("${flow-control.window.size}")
    void setFlowControlWindow(String flowControlWindow) {
        this.flowControlWindow = (int) ByteSizeUnit.getByteSize(flowControlWindow, DEFAULT_FLOW_CONTROL_WINDOW);
    }
NOTE module accessibility
@see com.navercorp.pinpoint.bootstrap.java9.module.ModuleSupport#addPermissionToValueAnnotation(JavaModule)
@author jaehong.kim
grpc/src/main/java/com/navercorp/pinpoint/grpc/client/config/ClientOption.java