import { type CircuitBreakerConfig, CircuitBreakerState } from '@nest-mcp/common';
export declare class CircuitBreakerService {
    private readonly logger;
    private readonly circuits;
    execute<T>(toolName: string, config: CircuitBreakerConfig, fn: () => Promise<T>): Promise<T>;
    private getOrCreateCircuit;
    private onSuccess;
    private onFailure;
    getState(toolName: string): CircuitBreakerState | undefined;
}
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