import { BaseExtractor } from './_base';
import { ExtractorResult } from '../types/extractors';
export declare class GmailExtractor extends BaseExtractor {
    canExtract(): boolean;
    extract(): ExtractorResult;
    private extractMessages;
    private getDate;
    private toIsoDate;
    private static readonly REMOVE_SELECTORS;
    private getMessageBody;
    private static readonly MEDIA_SELECTOR;
    private static isBlank;
    private static trimTrailingBlanks;
    private static readonly INLINE_TAGS;
    private static stripPlainTextQuotes;
    private getSubject;
}