/**
 * Fetches the voting reward for a given cold wallet address
 *
 * @param coldWalletAddress - The address of the cold wallet
 * @param hubId - The ID of the hub
 * @returns A promise resolving to the reward earned as a bigint
 * @throws {Error} If there is an issue fetching the voting reward
 */
export declare function getVotingReward(coldWalletAddress: string, hubId: number): Promise<bigint>;