import { CalendarEvent } from '../types/index.js';
export declare class GoogleCalendarIntegration {
    private oauth2Client;
    private calendar;
    private onTokenRefresh?;
    initialize(clientId: string, clientSecret: string, redirectUri: string, tokens?: {
        access_token: string;
        refresh_token: string;
        expiry_date: number;
    }, onTokenRefresh?: (tokens: {
        access_token: string;
        refresh_token: string;
        expiry_date: number;
    }) => Promise<void>): Promise<void>;
    getAuthUrl(): string;
    setAuthorizationCode(code: string): Promise<{
        access_token: string;
        refresh_token: string;
        expiry_date: number;
    }>;
    refreshAccessToken(): Promise<{
        access_token: string;
        refresh_token: string;
        expiry_date: number;
    }>;
    getEventsForDate(dateStr: string): Promise<CalendarEvent[]>;
    isAuthenticated(): boolean;
}
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