syntax_data: {"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// The signature represented by this type may not match the MIR function signature.
context_before: ///
context_after: /// Certain attributes, like `#[track_caller]` can introduce additional arguments, which are present in [`FnAbi`], but not in `FnSig`.