interface UploadContactToCampaignResponse {
    num_uploaded_contacts: number;
}
export declare class GridspaceClient {
    private readonly client;
    constructor({ accountId, clientSecret, }: {
        accountId: string;
        clientSecret: string;
    });
    callWithGrace(workflowId: string, data: Record<string, any>): Promise<unknown>;
    uploadContactsToCampaign(campaignId: string, data: any): Promise<UploadContactToCampaignResponse>;
}
export {};
