{"ast_node_type":"function","tokens":[{"end":77,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn is_proc_macro_crate(&self, crate_id: Crate) -> Cancellable<bool> {
    /// Returns whether the given crate is a proc macro.
        self.with_db(|db| crate_id.data(db).is_proc_macro)