{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"self.with_db(|db|"}]}
        self.with_db(|db| db.file_source_root(file_id).source_root_id(db))
    pub fn source_root_id(&self, file_id: FileId) -> Cancellable<SourceRootId> {
    }