/**
 * Metrics exposed by the PoUW middleware for monitoring and observability.
 */
export interface IPoUWMetrics {
    totalRequests: number;
    requestsRateLimited: number;
    workUnitsIssued: number;
    workUnitsCompleted: number;
    workUnitsFailed: number;
    averageVerificationLatencyMs: number;
    /** Total micro-Joules awarded to clients for completed work */
    totalMicroJoulesAwarded: number;
}
/**
 * Metrics exposed by the Work Coordinator for monitoring queue and tree state.
 */
export interface IWorkCoordinatorMetrics {
    queueDepth: number;
    treesInProgress: number;
    treesCompleted: number;
    hashesComputedByClients: number;
}
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