{"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"B::FnDef::new(self.create_def_id(did))"}]}
        B::FnDef::new(self.create_def_id(did))
    pub fn fn_def(&mut self, did: rustc_span::def_id::DefId) -> B::FnDef {
    }