{"ast_node_type":"function","tokens":[{"end":55,"kind":"keyword","start":0,"text":"fn"}]}
    fn from(id: crate::db::InternedClosureId) -> Self {
impl From<crate::db::InternedClosureId> for chalk_ir::ClosureId<Interner> {
        chalk_ir::ClosureId(id.as_id())