syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// StableHash::ZERO for the hash, in which case the hash gets computed each time.
context_before: /// This is only done in incremental mode. You can also opt out of caching by using
context_after: /// This is useful if you have values that you intern but never (can?) use for stable