You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: router.rs
    path of file: ./repos/CYFS/src/component/cyfs-stack/src/ndn_api/router
    
    the code of the file until where you have to start completion: use super::super::forward::*;
use super::super::handler::*;
use super::super::ndc::*;
use crate::acl::*;
use crate::forward::ForwardProcessorManager;
use crate::meta::ObjectFailHandler;
use crate::ndn::*;
use crate::non::*;
use crate::router_handler::RouterHandlersManager;
use crate::zone::ZoneManagerRef;
use cyfs_base::*;
use cyfs_bdt_e
    
    async fn get_forward(&self, target: DeviceId) -> BuckyResult<NDNInputProcessorRef> {
        // 获取到目标的processor
        let requestor = self.forward.get(&target).await?;

        // 这里不指定dec_id，使用forward request里面的dec_id
        let processor = NDNRequestor::new(None, requestor, None).into_processor();

        // 转换为input processor
        let input_processor = NDNInputTransformer::new(processor);

        // 增加forward前置处理器
        let pre_processor = NDNHandlerPreProcessor::new(
            RouterHandlerChain::PreForward,
            input_processor,
            self.router_handlers.clone(),
        );

        // 增加forward后置处理器
        let post_processor = NDNHandlerPostProcessor::new(
            RouterHandlerChain::PostForward,
            pre_processor,
            self.router_handlers.clone(),
        );

        Ok(post_processor)
    }