What is the current state of the law on Rule 41(b) dismissal if a plaintiff refuses to amend or amend their complaint?

(9th Cir. 2005) ("If a plaintiff does not take advantage of the opportunity to fix his complaint, a district court may convert the dismissal of the complaint into dismissal of the entire action."); Edwards v. Marin Park, 356 F.3d 1058, 1065 (9th Cir. 2004) ("The failure of the plaintiff eventually to respond to the court's ultimatum-either by amending the complaint or by indicating to the court that it will not do so-is properly met with the sanction of a Rule 41(b) dismissal.").