syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"trees.into_iter().fold(Tree::unit(),"}]}
source_snippet:         trees.into_iter().fold(Tree::unit(), Self::then)
context_before:     pub(crate) fn seq<const N: usize>(trees: [Tree<D, R, T>; N]) -> Self {
context_after:     }