import { MongoCollectionClass } from '../../mongo-collection.js';
import { Alert, CreateAlertDto, UpdateAlertDto } from '@tmlmobilidade/types';
import { IndexDescription } from 'mongodb';
import { z } from 'zod';
declare class AlertsClass extends MongoCollectionClass<Alert, CreateAlertDto, UpdateAlertDto> {
    private static _instance;
    protected createSchema: z.ZodSchema;
    protected updateSchema: z.ZodSchema;
    private constructor();
    static getInstance(): Promise<AlertsClass>;
    findByMunicipalityId(municipality_id: string): Promise<import("mongodb").WithId<Alert>[]>;
    findByTitle(title: string): Promise<import("mongodb").WithId<Alert> | null>;
    protected getCollectionIndexes(): IndexDescription[];
    protected getCollectionName(): string;
    protected getEnvName(): string;
}
export declare const alerts: AlertsClass;
export {};