use parallel;
/// ```rust,no_run
/// # use solrstice::AsyncSolrCloudClient;
/// # use solrstice::SolrSingleServerHost;
/// # use solrstice::SolrServerContextBuilder;
/// # use std::path::Path;
/// # async fn run() -> Result<(), Box<dyn std::error::Error>> {
/// # let context = SolrServerContextBuilder::new(SolrSingleServerHost::new("")).build();
/// # let client = AsyncSolrCloudClient::new(context);
/// client
/// .upload_config("example_config", Path::new("/path/to/config"))
/// .await?;
/// client
/// .create_collection("example_collection", "example_config", 1, 1)
/// .await?;
/// # Ok(())
/// # }
/// ```
async