interface InvoiceLineItemLike {
    amount: number;
    quantity: number;
    description: string;
    plan_id: string | null;
    plan_name: string | null;
    period_end: string;
    period_start: string;
}
interface PlanLike {
    transaction_fee: number;
}
export interface InvoiceLineItemDescription {
    kind: "return_fee" | "order_fee" | "sms_fee" | "transaction_fee" | "address_verify_fee" | "subscription";
    planName: string;
    description: string;
    quantity: number;
    lineRate?: {
        kind: "percentage";
        percentage: string;
    } | {
        kind: "fixed";
        amount: number;
    };
}
export interface FormatOptions {
    stripRate?: boolean;
    stripQuantity?: boolean;
}
export declare function invoiceLineItemDescription(li: InvoiceLineItemLike, plan: PlanLike, opts?: FormatOptions): InvoiceLineItemDescription;
export declare function groupAndFilterInvoiceLineItems<T extends InvoiceLineItemLike>(items: T[]): T[][];
export {};