declare const pipeline: ({
    $lookup: {
        from: string;
        localField: string;
        foreignField: string;
        as: string;
    };
    $unwind?: undefined;
    $match?: undefined;
    $group?: undefined;
    $project?: undefined;
} | {
    $unwind: string;
    $lookup?: undefined;
    $match?: undefined;
    $group?: undefined;
    $project?: undefined;
} | {
    $match: {
        "venue.a2": string;
    };
    $lookup?: undefined;
    $unwind?: undefined;
    $group?: undefined;
    $project?: undefined;
} | {
    $group: {
        _id: {
            id: string;
            created: string;
            pat: string;
            venue: string;
            agent: string;
            client: string;
            lead: string;
            referral: string;
            status: {
                $arrayElemAt: (string | number)[];
            };
        };
        notes: {
            $push: string;
        };
    };
    $lookup?: undefined;
    $unwind?: undefined;
    $match?: undefined;
    $project?: undefined;
} | {
    $project: {
        id: string;
        created: string;
        agent: {
            id: string;
            username: string;
            img: string;
        };
        client: {
            id: string;
            username: string;
            img: string;
        };
        pat: {
            date: string;
            time: string;
            venue: {
                name: string;
                loc: string;
            };
        };
        notes: string;
        lead: {
            id: string;
            created: string;
            method: string;
            campaign: string;
        };
        referral: string;
        status: string;
    };
    $lookup?: undefined;
    $unwind?: undefined;
    $match?: undefined;
    $group?: undefined;
})[];