export declare enum CircuitState {
    CLOSED = "CLOSED",
    OPEN = "OPEN",
    HALF_OPEN = "HALF_OPEN"
}
export interface CircuitBreakerOptions {
    failureThreshold: number;
    resetTimeout: number;
    monitoringPeriod: number;
}
export declare class CircuitBreaker {
    private state;
    private failureCount;
    private lastFailureTime;
    private successCount;
    private options;
    constructor(options: CircuitBreakerOptions);
    execute<T>(fn: () => Promise<T>): Promise<T>;
    private onSuccess;
    private onFailure;
    getState(): CircuitState;
    reset(): void;
}
export declare const circuitBreakers: {
    external: CircuitBreaker;
};
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