syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"f.debug_struct(\"ArgAbi\").field(\"layout\","}]}
source_snippet:         f.debug_struct("ArgAbi").field("layout", layout).field("mode", mode).finish()
context_before:         let ArgAbi { layout, mode } = self;
context_after:     }