{"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"let"}]}
    let match_expr: ast::MatchExpr = ctx.find_node_at_offset()?;
pub(crate) fn replace_match_with_if_let(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
    let match_arm_list = match_expr.match_arm_list()?;