export interface Payload {
    user_id?: string | null;
    device_id?: string;
    user_properties?: {
        [k: string]: unknown;
    };
    groups?: {
        [k: string]: unknown;
    };
    app_version?: string;
    platform?: string;
    os_name?: string;
    os_version?: string;
    device_brand?: string;
    device_manufacturer?: string;
    device_model?: string;
    carrier?: string;
    country?: string;
    region?: string;
    city?: string;
    dma?: string;
    language?: string;
    paying?: boolean;
    start_version?: string;
    insert_id?: string;
    userAgent?: string;
    userAgentParsing?: boolean;
    includeRawUserAgent?: boolean;
    utm_properties?: {
        utm_source?: string;
        utm_medium?: string;
        utm_campaign?: string;
        utm_term?: string;
        utm_content?: string;
    };
    referrer?: string;
    min_id_length?: number | null;
    library?: string;
    userAgentData?: {
        model?: string;
        platformVersion?: string;
    };
}
