import { Result } from '@fgv/ts-utils';
declare global {
    namespace jest {
        interface Matchers<R, T> {
            /**
             * Use .toFailWith to verify that a Result<T> is a failure
             * that matches a supplied string, RegExp or undefined value
             * @param message -
             */
            toFailWith(message: string | RegExp | undefined): R;
        }
    }
}
declare const _default: {
    toFailWith: <T>(received: Result<T>, expected: string | RegExp | undefined) => jest.CustomMatcherResult;
};
export default _default;
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