/**
 * Client for the invoices microservice (Nimi self-issued fiscal documents).
 * doc/create and doc/cancel are internal-only routes gated to the fixed
 * JWT_ADMIN service token - always call them with jwt: process.env.JWT_ADMIN.
 */
export declare class InvoiceClient {
    /** Create a fiscal document (invoice / receipt / credit note). Idempotent on body.sanity_string. */
    createDoc(params: {
        jwt: string;
        body: Record<string, unknown>;
    }): Promise<any>;
    /** Cancel a document by issuing a reversing credit note. */
    cancelDoc(params: {
        jwt: string;
        body: {
            sellerId: string;
            doctype: string;
            docnum: number;
            reason?: string;
        };
    }): Promise<any>;
    /**
     * Internal: render + store the group-order document PDF (non-fiscal, not PKCS#7-signed).
     * body = { sellerId, orderId, payload, signatureImageBase64?, logoUrl? }; returns { pdfKey, signatureKey?, pdfUrl }.
     */
    renderGroupOrderPdf(params: {
        jwt: string;
        body: Record<string, unknown>;
    }): Promise<any>;
    /** Internal: presigned (1h) URL for a stored group-order file key; returns { url }. */
    getFileUrl(params: {
        jwt: string;
        key: string;
    }): Promise<any>;
}