import type { PersistedAgentEventInput } from '@memento/core';
import type { CaptureReason } from '@memento/agent-integration';
import type { Response } from 'express';
export declare function requireString(value: unknown, name: string): string;
export declare function statusForValidationReason(reason: CaptureReason): number;
export declare function parsePayload(prepared: PersistedAgentEventInput): Record<string, unknown>;
export declare function writeError(res: Response, error: unknown): Response;
export declare function safeRecord(value: unknown): Record<string, unknown>;
export declare function safeNumber(value: unknown): number | null;
export declare function percentile(sorted: number[], ratio: number): number | null;
export declare function average(values: number[]): number | null;
export declare function boundedStatusLimit(value: unknown): number;
export declare function boundedStatusSince(value: unknown, now?: Date): string;
export declare function safeTelemetrySessionId(extraData: string | null): string | null;
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