{"ast_node_type":"function","tokens":[{"end":83,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn relevant_crates_for(&self, file_id: FileId) -> Cancellable<Vec<Crate>> {
    /// Returns crates that this file *might* belong to.
        self.with_db(|db| db.relevant_crates(file_id).iter().copied().collect())