From f2dadb136f96db240c265e938d9f2513a808375f Mon Sep 17 00:00:00 2001
From: haofengjiang <haofeng.jiang@cobo.com>
Date: Wed, 28 Dec 2022 11:07:11 +0800
Subject: [PATCH] update mpc api sdk

---
 MPCClient.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MPCClient.php b/MPCClient.php
index 19902f8..a3e2769 100644
--- a/MPCClient.php
+++ b/MPCClient.php
@@ -480,7 +480,7 @@ function listTransactions(int    $startTime = null, int $endTime = null, int $st
      * string $address
      * @return mixed|string
      */
-    function estimateFee(string $coin, BigInteger $amount, string $address, string $replaceCoboId)
+    function estimateFee(string $coin, BigInteger $amount, string $address, string $replaceCoboId = null)
     {
         $params = [
             "coin" => $coin,