/**
 * Circuit breaker response
 */
export type BreakerResponse<T> = {
    data?: T;
    error?: string;
};
/**
 * Circuit breaker interface
 */
export interface Breaker {
    exec: <T>(promise: () => Promise<BreakerResponse<T>>) => Promise<BreakerResponse<T>>;
    pause: () => void;
    state: () => States;
}
/**
 * Circuit breaker options
 */
export type BreakerOptions = {
    failureThreshold: number;
    successThreshold: number;
    timeout: number;
};
/**
 * Circuit breaker states
 */
export type States = "green" | "yellow" | "red" | "paused";
/**
 * Circuit breaker utility
 *
 * @param name - circuit name
 * @param opts - options
 * @returns a new circuit breaker
 */
export declare const breaker: (name: string, opts?: BreakerOptions) => Breaker;
//# sourceMappingURL=breaker.d.ts.map