import type { IEmail, IEmailLogTraffic, TEmailLogTrafficWindow } from '../../dist_ts_interfaces/requests/email-ops.js';
export declare const EMAIL_LOG_RETENTION_MS: number;
export declare const EMAIL_LOG_SEARCH_MAX_LENGTH = 200;
export interface IEmailLogTrafficWindowDescriptor {
    window: TEmailLogTrafficWindow;
    label: string;
    durationMs: number;
    bucketSizeMs: number;
}
export interface IEmailLogSparseTrafficBucket {
    bucketStart: number;
    sent: number;
    received: number;
    failed: number;
}
export declare function normalizeEmailLogSearch(searchArg: unknown): string;
export declare function selectEmailLogTrafficWindow(searchArg: string, oldestMatchAtArg: number | null, nowArg?: number): IEmailLogTrafficWindowDescriptor;
export declare function buildEmailLogTraffic(descriptorArg: IEmailLogTrafficWindowDescriptor, sparseBucketsArg: IEmailLogSparseTrafficBucket[], nowArg?: number): IEmailLogTraffic;
export declare function aggregateEmailLogTrafficInMemory(emailsArg: IEmail[], descriptorArg: IEmailLogTrafficWindowDescriptor, nowArg?: number): IEmailLogSparseTrafficBucket[];