From 1c6beaa9e920432283b4120896c07ddc9722233c Mon Sep 17 00:00:00 2001
From: Sebastien Guillemot <sebastiengllmt@gmail.com>
Date: Mon, 7 Feb 2022 15:14:44 +0900
Subject: [PATCH] Expand on comment

---
 rust/src/witness_builder.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/rust/src/witness_builder.rs b/rust/src/witness_builder.rs
index 08fee1cf..a65ece50 100644
--- a/rust/src/witness_builder.rs
+++ b/rust/src/witness_builder.rs
@@ -145,7 +145,9 @@ pub struct TransactionWitnessSetBuilder {
     plutus_data: HashMap<DataHash, PlutusData>,
     redeemers: HashMap<RedeemerWitnessKey, Redeemer>,
 
-    // witnesses that need to be added for the build function to succeed
+    /// witnesses that need to be added for the build function to succeed
+    /// this allows checking that witnesses are present at build time (instead of when submitting to a node)
+    /// This is useful for APIs that can keep track of which witnesses will be required (like transaction builders)
     required_wits: RequiredWitnessSet,
 }