{"ast_node_type":"variable","tokens":[{"end":60,"kind":"keyword","start":0,"text":"let"}]}
    let let_stmt: ast::LetStmt = ctx.find_node_at_offset()?;
pub(crate) fn convert_match_to_let_else(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
    let pat = let_stmt.pat()?;