import { QueryConfig } from "../types/query-config";
import { ResultItem } from "../types/result-types";
import { Combine } from "../types/union-to-intersection";
import { GroqBuilderOfType } from "./as";
declare module "../groq-builder" {
    interface GroqBuilderSubquery<TResult, TQueryConfig> extends AsCombinedDefinitions<TResult, TQueryConfig, "subquery"> {
    }
    interface GroqBuilder<TResult, TQueryConfig> extends AsCombinedDefinitions<TResult, TQueryConfig, "chain"> {
    }
}
interface AsCombinedDefinitions<TResult, TQueryConfig extends QueryConfig, ReturnType extends "root" | "subquery" | "chain"> {
    /**
     * Normally, when your query matches multiple document types,
     * you can only project keys that all types have in common.
     *
     * This method combines all keys from the document types,
     * allowing you to project any of those keys.
     *
     * @example
     * q.star.filterByType("product", "category").asCombined().project({
     *   // Common fields:
     *   _type: true, // "product" | "category"
     *   name: true, // string
     *   slug: "slug.current", // string
     *
     *   // Product-only field:
     *   price: true, // number | null
     *
     *   // Category-only field:
     *   description: true, // string | null
     * });
     *
     */
    asCombined(): GroqBuilderOfType<ResultItem.Override<TResult, Combine<ResultItem.Infer<TResult>>>, TQueryConfig, ReturnType>;
}
export {};