interface TxBlock {
    height: number;
    timestamp?: number;
}
interface Transaction {
    txid?: string;
    block?: TxBlock;
    timestamp?: number;
    timeFirstSeen: number;
}
/**
 * A helper function to sort transaction IDs based on corresponding transaction data
 */
export default function sortTxIds(txIds: string[], getTx: (txId: string) => Transaction): string[];
export {};