syntax_data: {"ast_node_type":"other","tokens":[{"end":28,"kind":"keyword","start":0,"text":"alts.into_iter()"}]}
source_snippet:             alts.into_iter()
context_before:         let into_layout = |alts: Vec<_>| {
context_after:                 .fold(layout::Tree::<Def, !, !>::uninhabited(), layout::Tree::<Def, !, !>::or)