export type DatabaseOperationKind = "connect" | "query";
export interface DatabaseRequestTelemetry {
    operationCount: number;
    queryCount: number;
    connectCount: number;
    retryCount: number;
    errorCount: number;
    timeoutCount: number;
    operationTotalMs: number;
    operationWallMs: number;
    queryTotalMs: number;
    connectTotalMs: number;
    slowestOperationMs: number;
    activeOperationCount: number;
    activeWindowStartedAt?: number;
}
export declare function createDatabaseRequestTelemetry(): DatabaseRequestTelemetry;
export declare function claimStartupDatabaseTelemetry(): DatabaseRequestTelemetry | undefined;
export declare function runWithDatabaseRequestTelemetry<T>(telemetry: DatabaseRequestTelemetry, fn: () => T): T;
export declare function enterDatabaseRequestTelemetry(telemetry: DatabaseRequestTelemetry): void;
export declare function beginDatabaseOperation(operation: DatabaseOperationKind): (outcome: "success" | "error" | "timeout") => void;
export declare function recordDatabaseRetry(): void;
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