use libpijul::pristine::sanakirja::Txn;
use libpijul::pristine::ChannelRef;

        return Ok(Repository {
            pristine,
        });

        return Ok(Repository { pristine });
    }
    fn load_channel(
        &mut self,
        txn: &Txn,
        channel_name: &str,
    ) -> Result<ChannelRef<Txn>, Box<dyn Error>> {
        match txn.load_channel(channel_name) {
            Ok(opt) => match opt {
                Some(c) => Ok(c),
                None => Err(Box::new(NoSuchChannelError {
                    channel_name: channel_name.to_string(),
                })),
            },
            Err(err) => Err(err.into()),
        }

        let channel = txn.load_channel(&channel_name)?.ok_or(NoSuchChannelError {
            channel_name: channel_name.to_string(),
        })?;

        let channel = self.load_channel(&txn, channel_name)?;