import { Ref, ComputedRef } from 'vue';
import { GraphQLClient, SparePartsMachine } from '@propeller-commerce/propeller-sdk-v2';
/**
 * Build ONE aliased query resolving every installation in a single request:
 * `machine_0: machine(source: $source, sourceId: $sourceId_0, language: $language) { … }`
 * per id. One shared `$source`/`$language`/`$imageVariantFilters`, one
 * `$sourceId_N` per id. `imageVariants(input:)` is NON_NULL — the same
 * `TransformationsInput!` the SDK `machine`/`category` queries require.
 */
export declare function buildRootMachinesQuery(count: number): string;
export interface UseMachinesOptions {
    /** SDK client. Without it the composable stays idle. */
    graphqlClient?: GraphQLClient;
    /** External system the machine ids belong to (pairs with each id). */
    source?: Ref<string | undefined>;
    /** Installation ids (from the `MY_INSTALLATIONS` company track attribute). */
    sourceIds?: Ref<string[] | undefined>;
    /** Language the machine TREE is authored in (usually EN). */
    language?: Ref<string | undefined>;
    /**
     * Image transformation for the card thumbnail — the `TransformationsInput!`
     * the schema requires on `imageVariants(input:)`. Without it the query fails
     * validation. Pass `config.imageVariantFiltersMedium` (same value the node
     * query uses).
     */
    imageVariantFilters?: unknown;
}
export interface UseMachinesReturn {
    /** Resolved installations, in `sourceIds` order, nulls dropped. */
    machines: ComputedRef<SparePartsMachine[]>;
    /** `true` while the concat request is in flight. */
    isLoading: Ref<boolean>;
    /** Re-run the fetch. */
    fetchMachines: () => Promise<void>;
}
/**
 * useMachines — resolve a company's installations in one concatenated request.
 */
export declare function useMachines(options: UseMachinesOptions): UseMachinesReturn;