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/OctoBase/libs/jwst-storage/src/storage/docs
    
    the code of the file until where you have to start completion: mod database;
mod utils;

use std::ops::Deref;

#[cfg(test)]
#[cfg(feature = "postgres")]
pub(super) use database::full_migration_stress_test;
use database::DocDBStorage;
#[cfg(test)]
pub(super) use database::{docs_storage_partial_test, docs_storage_test};
use tokio::sync::{broadcast::Sender, RwLock};

use super::*;

#[derive(Clone)]
pub struct SharedDocDBStorage(pub(super) Arc<DocDBStorage>);

impl SharedDocDBStorage {
    pub async fn init_with_pool(pool: DatabaseConnection, bucket: Arc<Bucket>) -> JwstStorageResult<Self> {
        Ok(Self(Arc::new(DocDBStorage::init_with_pool(pool, bucket).await?)))
    }

    pub async fn init_pool(database: &str) -> JwstStorageResult<Self> {
        Ok(Self(Arc::new(DocDBStorage::init_pool(database).await?)))
    }

    pub fn remote(&self) -> &RwLock<HashMap<String, Sender<Vec<u8>>>> {
        self.0.remote()
    }
}

impl Deref for SharedDocDBStorage {
    type Target = DocDBStorage;

    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

#[cfg(test)]
mod test {
    use std::collections::HashSet;

    use jwst_storage_migration::Migrator;
    use rand::random;
    use sea_orm_migration::MigratorTrait;
    use tokio::task::JoinSet;

    use super::{error, info, DocStorage, SharedDocDBStorage};
    use crate::{JwstStorageError, JwstStorageResult};

    async fn create_workspace_stress_test(st
    
    async fn create_workspace_stress_test(storage: SharedDocDBStorage, range: usize) -> JwstStorageResult<()> {
        let mut join_set = JoinSet::new();
        let mut set = HashSet::new();

        for _ in 0..range {
            let id = random::<u64>().to_string();
            set.insert(id.clone());
            let storage = storage.clone();

            join_set.spawn(async move {
                info!("create workspace: {}", id);
                let workspace = storage.get_or_create_workspace(id.clone()).await?;
                info!("create workspace finish: {}", id);
                assert_eq!(workspace.id(), id);
                Ok::<_, JwstStorageError>(())
            });
        }

        while let Some(ret) = join_set.join_next().await {
            if let Err(e) = ret.map_err(JwstStorageError::DocMerge)? {
                error!("failed to execute creator: {e}");
            }
        }

        for (i, id) in set.iter().enumerate() {
            let storage = storage.clone();
            info!("check {i}: {id}");
            let id = id.clone();
            tokio::spawn(async move {
                info!("get workspace: {}", id);
                let workspace = storage.get_or_create_workspace(id.clone()).await?;
                assert_eq!(workspace.id(), id);
                Ok::<_, JwstStorageError>(())
            });
        }

        while let Some(ret) = join_set.join_next().await {
            if let Err(e) = ret.map_err(JwstStorageError::DocMerge)? {
                error!("failed to execute: {e}");
            }
        }

        Ok(())
    }