use crate::{linked, loose};use git_object::{mutable, Kind};use std::io::Read; impl crate::Write for linked::Db {    type Error = loose::db::write::Error;     fn write(&self, object: &mutable::Object, hash: git_hash::Kind) -> Result<git_hash::ObjectId, Self::Error> {        self.dbs[0].loose.write(object, hash)    }     fn write_buf(&self, object: Kind, from: &[u8], hash: git_hash::Kind) -> Result<git_hash::ObjectId, Self::Error> {        self.dbs[0].loose.write_buf(object, from, hash)    }     fn write_stream(        &self,        kind: Kind,        size: u64,        from: impl Read,        hash: git_hash::Kind,    ) -> Result<git_hash::ObjectId, Self::Error> {        self.dbs[0].loose.write_stream(kind, size, from, hash)    }}