Is there a remedy available in a taxpayer action for repayment of public funds paid for unlawful purposes?

of public funds paid for unlawful purposes was a remedy available in a taxpayer action, and (3) no reason appeared to justify denying taxpayers the normal remedy of restitution in an in personam cause of action for repayment of public monies unlawfully expended. ( Ontario, supra , at pp. 344345, 85 Cal.Rptr. 149, 466 P.2d 693 ; see Miller v. McKinnon, supra , 20 Cal.2d at p. 96, 124 P.2d 34 [cause of action exists for taxpayer to, on behalf of public agency, recover illegally paid money from person receiving such funds].)