/**
 * Minimum transaction fee
 * 1000 satoshi/kB (similar to current `minrelaytxfee`)
 * @see https://github.com/bitcoin/bitcoin/blob/db88db47278d2e7208c50d16ab10cb355067d071/src/validation.h#L56
 */
export declare const MIN_TX_FEE = 1000;