What is the test for determining whether a party has met the statutory requirements for attorney fees on appeal?

^17. In their respondents' brief, Objectors state that "they are entitled to their fees and costs on appeal" and contend that we "should award such fees and costs in an amount to be determined on remand," either pursuant to section 17211 or the common fund theory. We express no view on whether respondents should be awarded their attorney fees on appeal, as that issue should be raised in the first instance in the probate court. (See Nestande v. Watson (2003) 111 Cal.App.4th 232, 238 ["whether a party has met the statutory requirements for an award of attorney fees is a question best decided by the trial court in the first instance"].)