{"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"let"}]}
    let if_keyword = ctx.find_token_syntax_at_offset(T![if])?;
pub(crate) fn invert_if(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
    let expr = ast::IfExpr::cast(if_keyword.parent()?)?;