From b4d34218aebba12482255b542be2109d157845cb Mon Sep 17 00:00:00 2001
From: Jason Woods <moo2u2@gmail.com>
Date: Mon, 8 Aug 2022 14:48:06 +1000
Subject: [PATCH] Added ability to add merchantSellerIdentifier to a line
 through TransactionBuilder

---
 src/TransactionBuilder.php | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/TransactionBuilder.php b/src/TransactionBuilder.php
index 19c31e5..1848e9d 100644
--- a/src/TransactionBuilder.php
+++ b/src/TransactionBuilder.php
@@ -329,6 +329,19 @@ public function withLineAddress($type, $line1, $line2, $line3, $city, $region, $
         return $this;
     }
 
+    /**
+     * Add a merchant seller ID to this line
+     *
+     * @param   string              merchantSellerIdentifier        ID of merchant seller
+     * @return  TransactionBuilder
+     */
+    public function withLineMerchantSeller($merchantSellerIdentifier)
+    {
+        $li = $this->getMostRecentLineIndex();
+        $this->_model['lines'][$li]['merchantSellerIdentifier'] = $merchantSellerIdentifier;
+        return $this;
+    }
+
     /**
      * Add a document-level Tax Override to the transaction.
      *  - A TaxDate override requires a valid DateTime object to be passed.