syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"SubpatternBindings::One(binding)"}]}
source_snippet:             SubpatternBindings::One(binding) => flattened.push(*binding),
context_before:         match subpat_bindings {
context_after:             SubpatternBindings::FromOrPattern => {