syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"#[derive(Clone,"}]}
source_snippet:     #[derive(Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Debug)]
context_before:     /// A byte offset relative to file beginning.
context_after:     pub struct RelativeBytePos(pub u32);