import { Pool } from 'pg';
import { IDatabaseOperations } from '@wix-velo/velo-external-db-types';
export default class DatabaseOperations implements IDatabaseOperations {
    pool: Pool;
    constructor(pool: Pool);
    validateConnection(): Promise<{
        valid: boolean;
    } | {
        valid: boolean;
        error: import("@wix-velo/velo-external-db-types").IBaseHttpError;
    }>;
}