Node { kind: symbol, subtree_size: 1, token_index: 1, closing_token: 2, has_error: false }
Node { kind: exprLiteral, subtree_size: 2, token_index: 1, closing_token: 2, has_error: false }
Node { kind: returnExpr, subtree_size: 3, token_index: 0, closing_token: 2, has_error: false }
Node { kind: body, subtree_size: 4, token_index: 0, closing_token: 2, has_error: false }
Node { kind: interpreterCode, subtree_size: 5, token_index: 0, closing_token: 2, has_error: false }