How to use the bitcore-lib.Script function in bitcore-lib

it('will get results using bitcore.Transaction', function() {
      var bitcoind = new BitcoinService(baseConfig);
      var wif = 'L2Gkw3kKJ6N24QcDuH4XDqt9cTqsKTVNDGz1CRZhk9cq4auDUbJy';
      var privkey = bitcore.PrivateKey.fromWIF(wif);
      var inputAddress = privkey.toAddress(bitcore.Networks.testnet);
      var outputAddress = bitcore.Address('2N2JD6wb56AfK4tfmM6PwdVmoYk2dCKf4Br');
      var tx = bitcore.Transaction();
      tx.from({
        txid: '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b',
        outputIndex: 0,
        script: bitcore.Script(inputAddress),
        address: inputAddress.toString(),
        satoshis: 5000000000
      });
      tx.to(outputAddress, 5000000000);
      tx.sign(privkey);
      var addresses = bitcoind._getAddressesFromTransaction(tx);
      addresses.length.should.equal(2);
      addresses[0].should.equal(inputAddress.toString());
      addresses[1].should.equal(outputAddress.toString());
    });
    it('will handle non-standard script types', function() {

it('will handle non-standard script types', function() {
      var bitcoind = new BitcoinService(baseConfig);
      var tx = bitcore.Transaction();
      tx.addInput(bitcore.Transaction.Input({
        prevTxId: '4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b',
        script: bitcore.Script('OP_TRUE'),
        outputIndex: 1,
        output: {
          script: bitcore.Script('OP_TRUE'),
          satoshis: 5000000000
        }
      }));
      tx.addOutput(bitcore.Transaction.Output({
        script: bitcore.Script('OP_TRUE'),
        satoshis: 5000000000
      }));
      var addresses = bitcoind._getAddressesFromTransaction(tx);
      addresses.length.should.equal(0);
    });
    it('will handle unparsable script types or missing input script', function() {

it('will return unique values', function() {
      var bitcoind = new BitcoinService(baseConfig);
      var tx = bitcore.Transaction();
      var address = bitcore.Address('2N2JD6wb56AfK4tfmM6PwdVmoYk2dCKf4Br');
      tx.addOutput(bitcore.Transaction.Output({
        script: bitcore.Script(address),
        satoshis: 5000000000
      }));
      tx.addOutput(bitcore.Transaction.Output({
        script: bitcore.Script(address),
        satoshis: 5000000000
      }));
      var addresses = bitcoind._getAddressesFromTransaction(tx);
      addresses.length.should.equal(1);
    });
  });

clients[1].getMainAddresses({}, function(err, walletAddresses) {
                var args = http.lastCall.args[0];
                var data = BitcorePayPro.Payment.decode(args.body);
                var pay = new BitcorePayPro();
                var p = pay.makePayment(data);
                var refund_to = p.get('refund_to');
                refund_to.length.should.equal(1);

                refund_to = refund_to[0];

                var amount = refund_to.get('amount')
                amount.low.should.equal(404500);
                amount.high.should.equal(0);
                var s = refund_to.get('script');
                s = new Bitcore.Script(s.buffer.slice(s.offset, s.limit));
                var addr = new Bitcore.Address.fromScript(s, 'testnet');
                addr.toString().should.equal(
                  walletAddresses[walletAddresses.length - 1].address);
                done();
              });
            });

clients[1].getMainAddresses({}, function(err, walletAddresses) {
                var args = http.lastCall.args[0];
                var data = BitcorePayPro.Payment.decode(args.body);
                var pay = new BitcorePayPro();
                var p = pay.makePayment(data);
                var refund_to = p.get('refund_to');
                refund_to.length.should.equal(1);

                refund_to = refund_to[0];

                var amount = refund_to.get('amount')
                amount.low.should.equal(404500);
                amount.high.should.equal(0);
                var s = refund_to.get('script');
                s = new Bitcore.Script(s.buffer.slice(s.offset, s.limit));
                var addr = new Bitcore.Address.fromScript(s, 'testnet');
                addr.toString().should.equal(
                  walletAddresses[walletAddresses.length - 1].address);
                done();
              });
            });

_.each(tx.outputs, function(o) {
      if (o.script) {
        var s = new Bitcore.Script(new Buffer(o.script, 'hex'));
        var a = s.toAddress(network);
        if (a) {
          allAddresses[a] = true;
        }
      }
    });
  });

Sender.prototype._buildRedeemScript = function() {
  this._redeemScript = new bitcore.Script();

  this._redeemScript.add(Opcode.OP_IF)
    .add(this._receiverPublicKeys[0].toBuffer())
    .add(Opcode.OP_CHECKSIG)
    .add(Opcode.OP_ELSE)
    .add(this._convertExpirationTimeStamp())
    .add(Opcode.OP_CHECKLOCKTIMEVERIFY)
    .add(Opcode.OP_DROP)
    .add(Opcode.OP_ENDIF)
    .add(this._senderPublicKeys[0].toBuffer())
    .add(Opcode.OP_CHECKSIG);
};

var scriptHash = bitcore.crypto.Hash.sha256ripemd160(script.toBuffer());
	var addressMainnet = bitcore.Address.fromScriptHash(scriptHash, bitcore.Networks.mainnet);
	$('#result-address-mainnet').val(addressMainnet);
	$('#result-address-mainnet-explorer').attr('href', BLOCKEXPLORER_MAINNET_ADDRESS_ENDPOINT.replace(':ADDRESS:', addressMainnet));
	var addressTestnet = bitcore.Address.fromScriptHash(scriptHash, bitcore.Networks.testnet);
	$('#result-address-testnet').val(addressTestnet);
	$('#result-address-testnet-explorer').attr('href', BLOCKEXPLORER_TESTNET_ADDRESS_ENDPOINT.replace(':ADDRESS:', addressTestnet));
	var interpreter = new bitcore.Script.Interpreter();
	interpreter.set({script: script});
	var err = '';
	var result = true;
	for(; interpreter.pc');
		var executed = (new bitcore.Script()).set({chunks: interpreter.script.chunks.slice(interpreter.pc-1, interpreter.pc)}).toString();
		var remaining = (new bitcore.Script()).set({chunks: interpreter.script.chunks.slice(interpreter.pc)}).toString();
		$('#result-steps tbody').append('' + [interpreter.pc, stack, executed, remaining].join('') + '');
		if(!result) break;
	}
	if(!result) {
		err += 'Script ended with error.';
	} else {
		if(interpreter.stack.length == 0) {
			result = false;
			err += 'The resulting stack is empty.';
		} else {
			var ret = interpreter.stack.pop();
			if(!bitcore.Script.Interpreter.castToBool(ret)) {
				result = false;
				err += 'The resulting top stack item is FALSE.';
			}
		}