import type { BillingPlanBalance, BillingSubscriptionCatalog } from "@opengeni/sdk";
export type CatalogPlan = BillingSubscriptionCatalog["plans"][number];
export type PlanAction = "checkout" | "upgrade" | "downgrade" | "cancel";
export declare function subscriptionAction(current: BillingPlanBalance, plans: CatalogPlan[], target: CatalogPlan): PlanAction | null;
export declare function planDate(value: string | null): string | null;
export declare function planSeats(plan: BillingPlanBalance): string;
export declare function isSeatLimitError(error: unknown, plan?: Pick<BillingPlanBalance, "seatsUsed" | "seatLimit"> | null): boolean;