syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: ///   onwards. 15 bits is enough for 99.99%+ of cases, but larger values
context_before: ///   with a peak usually at 3 or 4, and then it drops off quickly from 8
context_after: ///   (sometimes 20+ bits) might occur dozens of times in a typical crate.