syntax_data: {"ast_node_type":"other","tokens":[{"end":19,"kind":"keyword","start":0,"text":")"}]}
source_snippet:     ) -> Ty<'tcx> {
context_before:         args: impl IntoIterator<Item: Into<GenericArg<'tcx>>>,
context_after:         Ty::new_alias(tcx, ty::Projection, AliasTy::new(tcx, item_def_id, args))