//!   # pub trait Deserialize {}
//!   #
//!   # mod serde_json {
//!   #     use super::Deserialize;
//!   #     use std::io;
//!   #
//!   #     pub fn from_str<T: Deserialize>(json: &str) -> io::Result<T> {
//!   #         unimplemented!()
//!   #     }
//!   # }
//!   #
//!   # struct ClusterMap;
//!   #
//!   # impl Deserialize for ClusterMap {}
//!   #

//!   #
//!   # fn main() {}

//!   # struct It;
//!   #
//!   # impl It {
//!   #     fn detach(&self) -> Result<()> {
//!   #         unimplemented!()
//!   #     }
//!   # }
//!   #

//!       # return Ok(());
//!       #
//!       # const _: &str = stringify! {

//!       # };
//!       #
//!       # let it = It;
//!       # let path = "./path/to/instrs.jsox";
//!       #

//!       #
//!       # const _: &str = stringify! {

//!       # };
//!       #
//!       # Ok(())

//!   # use anyhow::anyhow;
//!   # use std::fmt::{self, Display};
//!   # use std::task::Poll;
//!   #
//!   # #[derive(Debug)]
//!   # enum DataStoreError {
//!   #     Censored(()),
//!   # }
//!   #
//!   # impl Display for DataStoreError {
//!   #     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
//!   #         unimplemented!()
//!   #     }
//!   # }
//!   #
//!   # impl std::error::Error for DataStoreError {}
//!   #
//!   # const REDACTED_CONTENT: () = ();
//!   #
//!   # let error = anyhow!("...");
//!   # let root_cause = &error;
//!   #
//!   # let ret =

//!       Some(DataStoreError::Censored(_)) => Ok(Async::Ready(REDACTED_CONTENT)),
//!       None => Err(e),

//!       Some(DataStoreError::Censored(_)) => Ok(Poll::Ready(REDACTED_CONTENT)),
//!       None => Err(error),

//!   # ;