syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"#[derive(Clone,"}]}
source_snippet: #[derive(Clone, Copy, PartialEq, Eq, Hash, HashStable)]
context_before: /// (such as traits) or may be inserted during lowering.
context_after: #[rustc_pass_by_value]