import { PatchProjectVariablesRequestBody, PatchProjectVariablesResponseBody } from '@imagine/ai-service/shared-types/route-types';
export declare function useSaveProjectVariablesMutation({ projectId, onSuccess, onError, }: {
    projectId: string | null;
    onSuccess?: (data: PatchProjectVariablesResponseBody) => void;
    onError?: (error: Error) => void;
}): import('@tanstack/react-query').UseMutationResult<PatchProjectVariablesResponseBody, Error, PatchProjectVariablesRequestBody, unknown>;
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