/**
 * Mexico CNBV Transaction Base
 *
 * Common functionality for all CNBV-regulated transactions.
 * Extended by subject-specific models (Transmisor).
 */
import { MexTransaction } from "../MexTransaction";
/**
 * Base model for Mexico CNBV transactions.
 *
 * Provides common accessors for all CNBV subject types.
 * Extended by MexTransmisorTransaction.
 *
 * @example
 * ```typescript
 * if (txn instanceof MexCNBVTransaction) {
 *   console.log(`CNBV transaction: ${txn.formattedAmount}`);
 * }
 * ```
 */
export declare class MexCNBVTransaction extends MexTransaction {
    toString(): string;
}
import type { TransactionModel } from "../../types";
/**
 * Check if transaction is for any CNBV subject
 */
export declare function isMexCNBVTransaction(txn: TransactionModel): txn is MexCNBVTransaction;