import { DocumentData, Firestore } from 'firebase/firestore';
export declare const getTaskAndVariant: ({ db, taskId, variantParams, }: {
    db: Firestore;
    taskId: string;
    variantParams: {
        [key: string]: unknown;
    };
}) => Promise<{
    task: DocumentData;
    variant: DocumentData | undefined;
} | {
    task: undefined;
    variant: undefined;
}>;