interface CircuitBreakerState { status: "closed" | "open" | "half-open"; updatedAt: number; } const state: CircuitBreakerState = { status: "closed", updatedAt: Date.now(), }; export function setCircuitBreakerState(status: CircuitBreakerState["status"]): void { state.status = status; state.updatedAt = Date.now(); } export function getCircuitBreakerState(): CircuitBreakerState { return { ...state }; }