import { RavenOptions, RavenStatic } from 'raven-js';
export declare type CustomError = string | Error;
export declare const raise: (msg: string) => void;
export declare const setup: ({ Raven: raven }: {
    Raven?: RavenStatic | undefined;
}) => boolean;
export declare const error: (err: CustomError, extra?: RavenOptions | undefined) => void;
export declare const warning: (err: CustomError, extra?: RavenOptions | undefined) => void;