syntax_data: {"ast_node_type":"enum","tokens":[{"end":21,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet: pub enum OptionKind {
context_before: #[derive(Copy, Clone, PartialEq, Eq, Debug)]
context_after:     /// An option that takes a value, and cannot appear more than once (e.g. `--out-dir`).