export interface Payload {
    previousId: string;
    userId: string;
    anonymousId?: string;
    context?: {
        ip?: string;
        url?: string;
        referrer?: string;
        os?: string;
        user_agent?: string;
        utm_campaign?: string;
        utm_source?: string;
        utm_medium?: string;
        utm_term?: string;
        utm_content?: string;
        screen_width?: number;
        screen_height?: number;
        library_name?: string;
        library_version?: string;
        device_id?: string;
    };
    channel?: string;
    timestamp: string | number;
    enable_batching: boolean;
    batch_size?: number;
    batch_bytes?: number;
}
