export declare const isFreeBillingOptions: (billingOptions: BillingOptions) => boolean;
export interface BillingOptions {
    type: BILLING_TYPE;
    support: Support;
    availableCountries: string[];
    plans?: Plan[];
}
export declare enum BILLING_TYPE {
    FREE = "free",
    BILLABLE = "billable",
    SPONSORED = "sponsored"
}
export interface PriceMetric {
    id: string;
    ranges: Range[];
    customUrl: string;
}
export interface Range {
    exclusiveFrom: number;
    inclusiveTo?: number;
    multiplier: number;
}
export interface Plan {
    id: string;
    currency: string;
    price: Price;
}
export interface Price {
    subscription?: number;
    metrics?: PriceMetric[];
}
export interface Support {
    email: string;
    url?: string;
    phone?: string;
}