syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"const"}]}
source_snippet:         const BYTE: RangeInclusive<u8> = 0x00..=0xFF;
context_before:     pub(crate) fn nonzero(width_in_bytes: u64) -> Self {
context_after:         const NONZERO: RangeInclusive<u8> = 0x01..=0xFF;