{"ast_node_type":"variable","tokens":[{"end":71,"kind":"keyword","start":0,"text":"let"}]}
    let end_of_then = then_block_items.syntax().last_child_or_token()?;
    let end_of_then = if end_of_then.prev_sibling_or_token().map(|n| n.kind()) == Some(WHITESPACE) {