syntax_data: {"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// arguments of an `FnSig`). Otherwise, consider using
context_before:     /// (e.g., getting the `DefId` of the inner value or getting the number of
context_after:     /// [`instantiate_identity`](EarlyBinder::instantiate_identity).