Type Alias Part

Part:
    | {
        custom?: Record<string, unknown>;
        data?: unknown;
        media?: undefined;
        metadata?: Record<string, unknown>;
        text: string;
        toolRequest?: undefined;
        toolResponse?: undefined;
    }
    | {
        custom?: Record<string, unknown>;
        data?: unknown;
        media: { contentType?: string; url: string };
        metadata?: Record<string, unknown>;
        text?: undefined;
        toolRequest?: undefined;
        toolResponse?: undefined;
    }