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: mod.rs
    path of file: ./repos/fluvio/crates/fluvio-stream-dispatcher/src/store
    
    the code of the file until where you have to start completion: // mod event;

pub use context::*;

pub use fluvio_stream_model::store::*;

mod context {

    use std::sync::Arc;
    use std::io::Error as IoError;
    use std::io::ErrorKind;
    use std::fmt::{Display, Debug};
    use std::time::Duration;

    use fluvio_stream_model::core::MetadataItem;
    use tracing::error;
    use async_channel::{Sender, Receiver, bounded, SendError};
    use once_cell::sync::Lazy;
    use tokio::select;
    use tracing::{debug, trace};

    use fluvio_future::timer::sleep;

    use crate::actions::WSAction;
    use crate::core::Spec;

    use super::MetadataStoreObject;
    use super::{LocalStore, ChangeListener, MetadataChanges};

    #[cfg(fea
    
        pub async fn delete(&self, key: S::IndexKey) -> Result<(), IoError> {
            match self.sender.send(WSAction::Delete(key.clone())).await {
                Ok(_) => {
                    // wait for object created in the store

                    let mut timer = sleep(Duration::from_secs(self.wait_time));
                    let mut spec_listener = self.change_listener();
                    loop {
                        // check if we can find old object
                        if !self.store.contains_key(&key).await {
                            debug!("store: {}, object: {:#?}, has been deleted", S::LABEL, key);
                            return Ok(());
                        }

                        debug!("{} store, waiting for delete event", S::LABEL);

                        select! {
                            _ = &mut timer => {
                                return Err(IoError::new(
                                    ErrorKind::TimedOut,
                                    format!("store timed out: {} for {:?}, timer: {} secs", S::LABEL,key,self.wait_time)
                                ));
                            },
                            _ = spec_listener.listen() => {

                                let changes = spec_listener.sync_changes().await;
                                trace!("{} received changes: {:#?}",S::LABEL,changes);
                            }
                        }
                    }
                }
                Err(err) => {
                    error!("{}, error sending to store: {}", S::LABEL, err);
                    Err(IoError::new(
                        ErrorKind::UnexpectedEof,
                        format!("not able to send out: {} for {:?}", S::LABEL, key),
                    ))
                }
            }
        }