export interface IMessageMetrics {
    messagesSent: number;
    messagesDelivered: number;
    messagesFailed: number;
    totalDeliveryLatencyMs: number;
    eventsEmitted: number;
    queriesExecuted: number;
    totalQueryLatencyMs: number;
    storageUtilizationBytes: number;
}
export interface IMessageMetricsCollector {
    recordMessageSent(): void;
    recordMessageDelivered(latencyMs: number): void;
    recordMessageFailed(): void;
    recordEventEmitted(latencyMs: number): void;
    recordQuery(latencyMs: number): void;
    recordStorageUtilization(bytes: number): void;
    getMetrics(): IMessageMetrics;
    reset(): void;
}
export declare class MessageMetricsCollector implements IMessageMetricsCollector {
    private metrics;
    recordMessageSent(): void;
    recordMessageDelivered(latencyMs: number): void;
    recordMessageFailed(): void;
    recordEventEmitted(_latencyMs: number): void;
    recordQuery(latencyMs: number): void;
    recordStorageUtilization(bytes: number): void;
    getMetrics(): IMessageMetrics;
    reset(): void;
    getAverageDeliveryLatency(): number;
    getDeliverySuccessRate(): number;
    getAverageQueryLatency(): number;
}
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