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: krillserver.rs
    path of file: ./repos/krill/src/daemon
    
    the code of the file until where you have to start completion: //! An RPKI publication protocol server.
use std::{collections::HashMap, path::PathBuf, str::FromStr, sync::Arc};

use bytes::Bytes;
use chrono::Duration;

use futures::future::try_join_all;

use rpki::{
    ca::{
        idexchange,
        idexchange::{CaHandle, ChildHandle, ParentHandle, PublisherHandle},
    },
    repository::resources::ResourceSet,
    uri,
};

use crate::{
    commons::{
        actor::{Actor, ActorDef},
        api::{
            self,
            import::{ExportChild, ImportChild},
            AddChildRequest, AllCertAuthIssues, AspaDefinitionList, AspaDefinitionUpdates, AspaProvidersUpdate,
           
    
    pub async fn cas_stats(&self) -> KrillResult<HashMap<CaHandle, CertAuthStats>> {
        let mut res = HashMap::new();

        for ca in self.ca_list(&self.system_actor)?.cas() {
            // can't fail really, but to be sure
            if let Ok(ca) = self.ca_manager.get_ca(ca.handle()).await {
                let roas = ca.configured_roas();
                let roa_count = roas.len();
                let child_count = ca.children().count();

                let bgp_report = if ca.handle().as_str() == "ta" || ca.handle().as_str() == "testbed" {
                    BgpAnalysisReport::new(vec![])
                } else {
                    self.bgp_analyser
                        .analyse(roas.as_slice(), &ca.all_resources(), None)
                        .await
                };

                res.insert(
                    ca.handle().clone(),
                    CertAuthStats::new(roa_count, child_count, bgp_report.into()),
                );
            }
        }

        Ok(res)
    }