syntax_data: {"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let (lhs_parenthesized, rhs_parenthesized) = match (c1.kind(), c2.kind()) {
context_before:                 let formatted_op = op.to_hir_binop().as_str();
context_after:                     (