syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"#[derive(Clone,"}]}
source_snippet: #[derive(Clone, Debug, Hash, PartialEq, Eq)]
context_before: /// 3. `Seq`s and `Alt`s with a single member do not exist.
context_after: pub(crate) enum Tree<D, R, T>