/**
 * Mexico CNBV Alert Item Base
 *
 * Common functionality for all CNBV-regulated alert items.
 * Extended by subject-specific models (Transmisor).
 */
import type { CNBVAlertItemData } from "@artu-ai/shared";
import { MexAlertItem, type MexAlertItemData } from "../MexAlertItem";
/**
 * Alert item data with CNBV data
 */
export interface MexCNBVAlertItemData extends MexAlertItemData {
    scopeData?: {
        MX?: {
            cnbv?: CNBVAlertItemData;
        };
        [key: string]: unknown;
    };
}
/**
 * Base model for Mexico CNBV alert items.
 *
 * Provides common accessors for all CNBV subject types.
 * Extended by MexTransmisorAlertItem.
 */
export declare class MexCNBVAlertItem extends MexAlertItem {
    /**
     * CNBV data
     */
    protected get cnbvData(): CNBVAlertItemData | undefined;
    toString(): string;
}
import type { AlertItemModel } from "../../types";
/**
 * Check if alert item is for any CNBV subject
 */
export declare function isMexCNBVAlertItem(item: AlertItemModel): item is MexCNBVAlertItem;