import { SmartContractLib } from '../smartContractLib.js';
import { ByteString, TxOut, TxIn, Addr, UInt64 } from '../types/index.js';
/**
 * Library for parsing and constructing transactions
 * @category Library
 * @onchain
 */
export declare class TxUtils extends SmartContractLib {
    /** if a output satoshi value is zero */
    static readonly ZERO_SATS: UInt64;
    /**
     * Build serialized tx output
     * @param script serialized locking script of the output
     * @param satoshis serialized satoshis of the output
     * @returns serialized tx output in format ByteString
     */
    static buildOutput(scriptHash: ByteString, satoshis: UInt64): ByteString;
    /**
   * Build serialized tx output
   * @param script serialized locking script of the output
   * @param satoshis serialized satoshis of the output
   * @returns serialized tx output in format ByteString
   */
    static buildDataOutput(scriptHash: ByteString, satoshis: UInt64, dataHash: ByteString): ByteString;
    /**
     * Build serialized change output
     * @param change change output to build
     * @returns serialized change output in format ByteString
     */
    static buildChangeOutput(change: TxOut): ByteString;
    /**
     * Merge tx input into a ByteString
     * @param txInput tx input, must be a segwit input
     * @returns serialized tx input
     */
    static mergeInput(txInput: TxIn): ByteString;
    /**
     * build `OP_RETURN` script from data payload
     * @param {ByteString} data the data payload
     * @returns {ByteString} a ByteString contains the data payload
     */
    static buildOpReturnOutput(data: ByteString): ByteString;
    /**
     * constructs a P2PKH script from a given PubKeyHash
     * @param {PubKeyHash} pubKeyHash - the recipient's public key hash
     * @returns {ByteString} a `ByteString` representing the P2PKH script
     */
    static buildP2PKHScript(addr: Addr): ByteString;
    /**
     * constructs a P2PKH output from a given PubKeyHash and satoshi amount
     * @param {Addr} addr - the recipient's public key hash
     * @param {Int32} amount - the satoshi amount
     * @returns {ByteString} a `ByteString` representing the P2PKH output
     */
    static buildP2PKHOutput(amount: UInt64, addr: Addr): ByteString;
    /**
     * build `OP_FALSE OP_RETURN` script from data payload
     * @param {ByteString} data the data payload
     * @returns {ByteString} a ByteString contains the data payload
     */
    static buildOpreturnScript(data: ByteString): ByteString;
    /**
     * convert a `UInt64` number to 8 bytes in little-end order.
     * @param {UInt64} n - the satoshi amount
     * @returns {ByteString} a `ByteString`
     */
    static satoshisToByteString(n: UInt64): ByteString;
    /**
     * convert a `ByteString` to a `UInt64` number
     * @param {ByteString} bs - the satoshi amount
     * @returns {UInt64} a `UInt64`
     */
    static byteStringToSatoshis(bs: ByteString): UInt64;
}
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