syntax_data: {"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"scope.cached_unwind_block.map(|cached_block|"}]}
source_snippet:                 scope.cached_unwind_block.map(|cached_block| (scope_idx + 1, cached_block))
context_before:             .find_map(|(scope_idx, scope)| {
context_after:             })