import { PublicKey } from '@hashgraph/sdk';
import { Logger } from './logger';
/**
 * Converts account IDs to public keys for fee exemption
 * @param client Hedera client instance
 * @param accountIds Array of account IDs to convert to public keys
 * @param network The network to use for retrieving public keys
 * @param logger Optional logger instance
 * @returns Array of public keys
 */
export declare function accountIdsToExemptKeys(accountIds: string[], network: string, logger?: Logger): Promise<PublicKey[]>;
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