syntax_data: {"ast_node_type":"variable","tokens":[{"end":50,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let parent = &mut stack[parent_index];
context_before:         if let Some(parent_index) = stack.last_index() {
context_after:             parent.required_depth = parent.required_depth.max(required_depth_for_nested + 1);