syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"decl.inputs.iter().map(|ty|"}]}
source_snippet:         decl.inputs.iter().map(|ty| ty.span).chain(iter::once(decl.output.span()))
context_before:     if let Some(decl) = node.fn_decl() {
context_after:     } else {