interface DiscardPendingSourceVariables {
    /** `details.name` of the in-progress source to drop. */
    sourceName: string;
    /** Names of the already-deployed sources, used to detect the last pending one. */
    deployedNames: Set<string>;
}
/**
 * Drops one in-progress source, from both places it can live:
 *
 * - the pipeline config, where the source-test `PATCH` stored it with
 *   `active: false` — removed with a merge-patch `null` so the deployed sources
 *   and the rest of the config are left untouched (and the pipeline is not
 *   redeployed, unlike deleting a live source);
 * - the saved draft, keeping the other sources. When it was the last pending one
 *   (only deployed sources would remain) the whole draft is deleted. Round-trips
 *   through the form mappers so per-source data stays aligned and the draft's
 *   `finishedOn` resume marker is preserved.
 */
export declare const useDiscardPendingSource: () => import("@tanstack/react-query").UseMutationResult<void, unknown, DiscardPendingSourceVariables, unknown>;
export {};