syntax_data: {"ast_node_type":"other","tokens":[{"end":27,"kind":"keyword","start":0,"text":")"}]}
source_snippet:         ) -> $struct_name {
context_before:             target_modifiers: &mut BTreeMap<OptionsTargetModifiers, String>,
context_after:             build_options(early_dcx, matches, target_modifiers, $stat, $prefix, $outputname)