export declare class ConnectionError extends Error {
    code: string | undefined;
    isTransient: boolean | undefined;
    constructor(message: string, code?: string);
}
export declare class RequestError extends Error {
    code: string | undefined;
    number: number | undefined;
    state: number | undefined;
    class: number | undefined;
    serverName: string | undefined;
    procName: string | undefined;
    lineNumber: number | undefined;
    constructor(message: string, code?: string);
}