syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// either at call-site or at definition-site.
context_before:     /// Identifier produced by a semi-opaque expansion may be resolved
context_after:     /// If it's a local variable, label or `$crate` then it's resolved at def-site.