syntax_data: {"ast_node_type":"function","tokens":[{"end":66,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn with_updated_universe(self, ui: ty::UniverseIndex) -> Self;
context_before:     fn new_anon(ui: ty::UniverseIndex, var: ty::BoundVar) -> Self;
context_after: }