syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"Self::reg64"}]}
source_snippet:             Self::reg64 => types! { _: I8, I16, I32, F32, I64, F64; },
context_before:             Self::reg32 => types! { _: I8, I16, I32, F32; },
context_after:         }